If it takes five minutes to boil one egg, how long will it take to boil four eggs?

If it takes five minutes to boil one egg, how long will it take to boil four eggs?
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1 Answer

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Answer: Five minutes.
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You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes? -Riddles

Description : You want to boil a two-minute egg. If you only have a three-minute timer (hourglass), a four-minute timer and a five-minute timer, how can you boil the egg for only two minutes? -Riddles

Last Answer : Once the water is boiling, turn the three-minute timer and five-minute timer over. When the three-minute timer runs out, put the egg in the boiling water. When the five-minute timer runs out, two minutes ... time take the egg out of the water. You don't need the four-minute timer for this riddle.

There is a circular path around a sports field. Priya takes 18 minutes to drive one round of the field. Harish takes 12 minutes. Suppose they both start at the same point and at the same time and go in the same direction. After how many minutes will they meet ? (a) 36 minutes (b) 18 minutes (c) 6 minutes (d) They will not meet

Description : There is a circular path around a sports field. Priya takes 18 minutes to drive one round of the field. Harish takes 12 minutes. Suppose they both start at the same point and at the same time and go in the same ... will they meet ? (a) 36 minutes (b) 18 minutes (c) 6 minutes (d) They will not meet

Last Answer : (a) 36 minutes

Four members of a band are walking to a night concert. They decide to take a shortcut, but must cross a bridge. Luckily they have one flashlight. Because of the varying size of their instruments, it takes each member a different amount of time to cross the bridge - it takes the first person one minute, the second person two minutes, the third person five minutes and the fourth person ten minutes. They must cross the bridge in pairs, travelling at the slower speed so if the one minute person went with the ten minute person, it would take a total of ten minutes. Since there is only one flashlight, one person must come back across the bridge, then another pair can cross. They only have 17 minutes to cross the bridge and still get to the concert on time. What order should they cross to get eve

Description : Four members of a band are walking to a night concert. They decide to take a shortcut, but must cross a bridge. Luckily they have one flashlight. Because of the varying size of their instruments, it ... bridge and still get to the concert on time. What order should they cross to get eve -Riddles

Last Answer : First, the one minute person and the two minute person must cross the bridge, for a total of two minutes. Then the one minute person should come back with flashlight - total of three ... minutes) and gets the one minute person and they cross together bringing the total to seventeen minutes.

There are 312, 260 and 156 students in class X, XI and XII respectively. Buses are to be hired to take these students to a picnic. Find the maximum number of students who can sit in a bus if each bus takes equal number of students (a) 52 (b) 56 (c) 48 (d) 63

Description : There are 312, 260 and 156 students in class X, XI and XII respectively. Buses are to be hired to take these students to a picnic. Find the maximum number of students who can sit in a bus if each bus takes equal number of students (a) 52 (b) 56 (c) 48 (d) 63

Last Answer : (a) 52

A person walking 5/6 of his usual rate is 40 minutes late. What is his usual time?

Description : A person walking 5/6 of his usual rate is 40 minutes late. What is his usual time?

Last Answer : Answer: 3 hours 20 minutes.

Three pipes, A, B, & C are attached to a tank. A & B can fill it in 20 & 30 minutes respectively while C can empty it in 15 minutes. If A, B & C are kept open successively for 1 minute each, how soon will the tank be filled?

Description : Three pipes, A, B, & C are attached to a tank. A & B can fill it in 20 & 30 minutes respectively while C can empty it in 15 minutes. If A, B & C are kept open successively for 1 minute each, how soon will the tank be filled?

Last Answer : Answer: 167 minutes.

The minute hand of a clock overtakes the hour hand at intervals of 64 minutes of correct time. How much a day does the clock gain or lose?

Description : The minute hand of a clock overtakes the hour hand at intervals of 64 minutes of correct time. How much a day does the clock gain or lose?

Last Answer : Answer: 32 8/11 minutes.

Pipe A can fill an empty tank in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins. If all of them work together, find the time taken to fill the tank? (a) 17 1/7 mins (b) 20 mins (c) 8 mins (d) none of these

Description : Pipe A can fill an empty tank in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins. If all of them work together, find the time taken to fill the tank? (a) 17 1/7 mins (b) 20 mins (c) 8 mins (d) none of these

Last Answer : (a) 17 1/7 mins

How long do you boil for Hard boil eggs?

Description : How long do you boil for Hard boil eggs?

Last Answer : At least five minutes.

How many minutes does it take to boil water to disinfect it ?

Last Answer : Boil for 20 minutes to disinfect the water.

"Ravi is 10 years older than Rehan. Five years ago, one-seventh of Ravi's age was equal to one-fifth of Rehan's age." If Rehan's age be 'x' years and Ravi's age be 'y' years, which of the following pair of linear equations is describing it algebraically? (a) x - y = 10 and 7x - 5y + 10 = 0 (b) y -x = 10 and 5y -7x + 10 = 0 (c) x + y = 10 and 7x + 5y - 10 = 0 (d) x - y = -10 and 7y - 5x + 10 = 0

Description : "Ravi is 10 years older than Rehan. Five years ago, one-seventh of Ravi's age was equal to one-fifth of Rehan's age." If Rehan's age be 'x' years and Ravi's age be 'y' years, which of the following pair of linear equations is ... y = 10 and 7x + 5y - 10 = 0 (d) x - y = -10 and 7y - 5x + 10 = 0

Last Answer : (b) y -x = 10 and 5y -7x + 10 = 0

A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?

Description : A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?

Last Answer : Answer: Eight.

After you hard boil eggs do you wash the pan?

Description : After you hard boil eggs do you wash the pan?

Last Answer : I wash the pan because I always add a dash of vinegar.

How come eggs sometimes crack when you boil them?

Description : How come eggs sometimes crack when you boil them?

Last Answer : They expand in the shell.

What is the proper way to boil an egg?

Description : What is the proper way to boil an egg?

Last Answer : answer:I think you’re supposed to cover the eggs with 1 inch of water and bring to a boil then boil for like 12 minutes? edit: here

“Scientists can un-boil an egg.”

Description : “Scientists can un-boil an egg.” 

Last Answer : First they added a urea substance to the egg to turn the cooked white back into a liquid. This is then put into a vortex fluid device, where the tangled proteins are spun and ... can help cancer researchers, pharmaceuticals, agricultural and other industries save a great deal of time and money

The maximum number of zeroes that a polynomial of degree 4 can have is (a) One (b) Two (c) Three (d) Four

Description : The maximum number of zeroes that a polynomial of degree 4 can have is (a) One (b) Two (c) Three (d) Four

Last Answer : (d) Four

The position of the fourth pole D so that the four points A, B, C and D form a parallelogram will be: (a) (5, 2) (b) (1, 5) (c) (1, 4) (d) (2, 5)

Description : The position of the fourth pole D so that the four points A, B, C and D form a parallelogram will be: (a) (5, 2) (b) (1, 5) (c) (1, 4) (d) (2, 5)

Last Answer : (b) (1, 5)

Points P,Q,R(in this order) divide the line joining the points A(-2,2) and B(2,8) into four equal parts. The coordinates of the point Q are: (a) (-1,7/2) (b) (1,13/2) (c) (0,5) (d) (5,1/2)

Description : Points P,Q,R(in this order) divide the line joining the points A(-2,2) and B(2,8) into four equal parts. The coordinates of the point Q are: (a) (-1,7/2) (b) (1,13/2) (c) (0,5) (d) (5,1/2)

Last Answer : (c) (0,5)

The value of sin A or cos A never exceeds ————a. One b. Two c. Three d Four

Description : The value of sin A or cos A never exceeds ————a. One b. Two c. Three d Four

Last Answer : a. One

From 5 different green balls, four different blue balls and three different red balls, how many combinations of balls can be chosen taking at least one green and one blue ball?

Description : From 5 different green balls, four different blue balls and three different red balls, how many combinations of balls can be chosen taking at least one green and one blue ball?

Last Answer : Answer: 3720.

Solar cooker takes more time as compared to the LPG to boil potato or rice, yet Kunal uses solar cooker for such type of cooking: (i) Why does Kunal uses Solar cooker instead of LPG? Give reasons for your answer. (ii) Name the phenomenon which is responsible for obtaining high temperature in solar cooker. -Science

Description : Solar cooker takes more time as compared to the LPG to boil potato or rice, yet Kunal uses solar cooker for such type of cooking: (i) Why does Kunal uses Solar cooker instead of LPG? ... answer. (ii) Name the phenomenon which is responsible for obtaining high temperature in solar cooker. -Science

Last Answer : (a)(i) There are no energy losses while cooking on the solar cooker as the food gets cooked in a controlled environment whereas cooking on the LPG leads to maximum percentage of energy loss. ( ... saves a lot of prestigious time which is normally consumed for cooking purpose. (b) Greenhouse effect.

It takes `16 min` to boil some water in an electric kettle. Due to some defect it becomes necessary to remove `10 %` turns of the heating coil of the

Description : It takes `16 min` to boil some water in an electric kettle. Due to some defect it becomes necessary to remove `10 %` turns of the heating coil of the

Last Answer : It takes `16 min` to boil some water in an electric kettle. Due to some defect it becomes necessary to remove `10 ... min C. `20.9` min D. `13.9` min

How does the amount of water affect the time it takes to boil?

Description : How does the amount of water affect the time it takes to boil?

Last Answer : The more water that is to be boiled, the longer it takes for that water to come to a boil with the same heat source.

A woman who lived in Germany during World War II wanted to cross the German/Swiss border in order to escape Nazi pursuers. The bridge which she is to cross is a half mile across, over a large canyon. Every three minutes a guard comes out of his bunker and checks if anyone is on the bridge. If a person is caught trying to escape German side to the Swiss side they are shot. If caught crossing the other direction without papers they are sent back. She knows that it takes at least five minutes to cross the bridge, in which time the guard will see her crossing and shoot her. How does she get across? -Riddles

Description : A woman who lived in Germany during World War II wanted to cross the German/Swiss border in order to escape Nazi pursuers. The bridge which she is to cross is a half mile across, over a large canyon. ... , in which time the guard will see her crossing and shoot her. How does she get across? -Riddles

Last Answer : She waits until the guard is inside his hut, then walks halfway across before starting to walk back. The guard, seing she has no papers, sends her 'back'.

Working out how many left and right turns I can take before I run into my path?

Description : Working out how many left and right turns I can take before I run into my path?

Last Answer : answer:Hm . Well if there are 10 segments, then there are 9 joins. Each joint can be bent left, right or straight. So an upper bound would be 3^9 = 19683. That doesn't account for the fail ... than that. You can't just tally the lefts or rights either. Because LLSLSL is okay, but LLLLSS is not.

What value/s can x take in the expression k(x – 10) (x + 10) = 0 where k is any real number. (a) 100, -100 (b) Infinitely many (c) Depends on value of k (d) 10, -10

Description : What value/s can x take in the expression k(x – 10) (x + 10) = 0 where k is any real number. (a) 100, -100 (b) Infinitely many (c) Depends on value of k (d) 10, -10

Last Answer : (d) 10, -10

A monkey starts climbing up a tree 20ft. tall. Each hour, it hops 3ft. and slips back 2ft. How much time would it take the monkey to reach the top?

Description : A monkey starts climbing up a tree 20ft. tall. Each hour, it hops 3ft. and slips back 2ft. How much time would it take the monkey to reach the top?

Last Answer : Answer: 18 hours.

Thirty men take 20 days to complete a job working 9 hours a day. How many hour a day should 40 men work to complete the job? (a) 8 hrs (b) 7 1/2 hrs (c) 7 hrs (d) 9 hrs

Description : Thirty men take 20 days to complete a job working 9 hours a day. How many hour a day should 40 men work to complete the job? (a) 8 hrs (b) 7 1/2 hrs (c) 7 hrs (d) 9 hrs

Last Answer : (b) 7 1/2 hrs

Is it possible for a right angled triangle with sides 3 and 4 units long to have a hypotenuse 6 units in length?

Description : Is it possible for a right angled triangle with sides 3 and 4 units long to have a hypotenuse 6 units in length?

Last Answer : answer:I'm not quite getting you. It isn't actually a triangle when the hypotenuse has these indentations, right? The hypotenuse isn't a straight line as you describe it. If the other sides are 3 ... and 5.00001, you don't have a straight line. Unless I'm misunderstanding what you're suggesting.

A flag pole 18 m high casts a shadow 9.6 m long. Then the distance of the top of the pole from the far end of the shadow is (a) 25.6 (b) 20.4 (c) 23.7 (d) 32.5

Description : A flag pole 18 m high casts a shadow 9.6 m long. Then the distance of the top of the pole from the far end of the shadow is (a) 25.6 (b) 20.4 (c) 23.7 (d) 32.5

Last Answer : (b) 20.4

A goat is tied to one corner of a square plot of side 12 meter by a rope 7 meter long. Find the area it can graze? (a) 38.5 sq.m (b) 155 sq.m (c) 144 sq.m (d) 19.25 sq.m

Description : A goat is tied to one corner of a square plot of side 12 meter by a rope 7 meter long. Find the area it can graze? (a) 38.5 sq.m (b) 155 sq.m (c) 144 sq.m (d) 19.25 sq.m

Last Answer : (a) 38.5 sq.m

If it takes four rat catchers four minutes to kill fourrats, how many rat catchers would be needed to catch 50 rats in 50 minutes? -Riddles

Description : If it takes four rat catchers four minutes to kill fourrats, how many rat catchers would be needed to catch 50 rats in 50 minutes? -Riddles

Last Answer : The same number of rat catchers- Four.

If it takes 5 microwaves 5 minutes to cook 5 chickens, how long does it take 100 microwaves to cook 100 chickens? -Riddles

Description : If it takes 5 microwaves 5 minutes to cook 5 chickens, how long does it take 100 microwaves to cook 100 chickens? -Riddles

Last Answer : 5 minutes. We can assume that one chicken is placed in each microwave and that each chicken takes 5 minutes to cook.

A runner is running a 10km race it takes her 17.5 minutes to reach the 2.5 km mark at that rate how long will it take her to run the whole race?

Description : A runner is running a 10km race it takes her 17.5 minutes to reach the 2.5 km mark at that rate how long will it take her to run the whole race?

Last Answer : 45

Pipe A usually fills a tank in 2 hours. On account of a leak at the bottom of the tank, it takes pipe A 30 more minutes to fill the tank. How long will the leak take to empty a full tank if pipe A is shut? a) 4 hours b) 3 hours c) 6 hours d) 8 hours e) 10 hours

Description : Pipe A usually fills a tank in 2 hours. On account of a leak at the bottom of the tank, it takes pipe A 30 more minutes to fill the tank. How long will the leak take to empty a full tank if pipe A is shut? a) 4 hours b) 3 hours c) 6 hours d) 8 hours e) 10 hours

Last Answer : portion of the tank filled by the pipe A in 1 hour = ½ of the tank let the portion of the tank emptied because of the leak in 1 hour be 1/x of the tank therefore, in 1 hour , portion of the tank filled = 1/2 - 1 ... 1/2 - 1/x = 1/2.5 or x = 10 hence, it takes 10 hours to empty a full tank Answer: e)

Is it possible to solve a magic square made up of a system of unknown symbols?

Description : Is it possible to solve a magic square made up of a system of unknown symbols?

Last Answer : No. I could populate a 9×9 magic square with the letters A through I. You would never figure out what numbers were represented by the letters because a 9×9 magic square is not unique.

Did we invent math,or did we discover it?

Description : Did we invent math,or did we discover it?

Last Answer : God invented it.

How many of you can pass this simple test?

Description : How many of you can pass this simple test?

Last Answer : I can.

How can two infinite sets not have one to one correspondence with each other?

Description : How can two infinite sets not have one to one correspondence with each other?

Last Answer : You've missed what an infinite set means. Consider this definition: Infinite sets are the sets containing an uncountable or infinite number of elements. Infinite sets are also called uncountable sets. That is ... . Or for the set of all positive integers and the set of all negative integers .

Using the rays in the diagram, how many different acute angles can be formed?

Description : Using the rays in the diagram, how many different acute angles can be formed?

Last Answer : We don’t do your homework, but this is a simple combinatorics problem. Any pair of those rays will form an acute angle. How many pairs are there?

Can someone help me with my math assignment?

Description : Can someone help me with my math assignment?

Last Answer : We don't do people's homework here, but we can help in other ways. For instance, some of us can suggest an approach. One would hope, though, that your instructor has already prepared you to ... you take your shot at answering the question, and then post your answer and ask if others will comment?

What’s 0.222222222... as a simplified fraction?

Description : What’s 0.222222222... as a simplified fraction?

Last Answer : 2/9

If somebody choose two digit and three digit numbers and their difference is 989.What will be their sum? a) 1000 b)1010 c) 1006?

Description : If somebody choose two digit and three digit numbers and their difference is 989.What will be their sum? a) 1000 b)1010 c) 1006?

Last Answer : None of the above. Let x be the three digit number and y be the two digit number. x - y =989. x = 989 + y. x is obviously greater than 989 and less than 1000 (since it is three digits). Since y is a two digit number ... 989 + 10 = 999. We can't go any higher, so x =999 and y=10. x+y = 999+10 = 1009

What do you think of this YouTube video on why you can't divide by zero?

Description : What do you think of this YouTube video on why you can't divide by zero?

Last Answer : Also are the symbols for Eternity and infinity the same? ∞

Have you ever forgotten something that you didn't think you ever COULD forget?

Description : Have you ever forgotten something that you didn't think you ever COULD forget?

Last Answer : I still forget my neighbours name. I have known her for 3 years. I forgotten the quadric equation. I remember some math mnemonics but had to look up SOHCAHTOA and roy'g'biv to answer this question. I ... simple things every now and again , and have to look them up online , Fluther , or call family.

How many miles will a person run during a 10 kilometer race?

Description : How many miles will a person run during a 10 kilometer race?

Last Answer : What kind of mile? There are many.

A magazine company conducted a phone survey asking subscribers to identify the brand of outdoor camping equipment they like best. Every subscriber was surveyed, and the results were printed in an article titled “Most Popular Equipment among All Campers.” Why is the title of the article misleading?

Description : A magazine company conducted a phone survey asking subscribers to identify the brand of outdoor camping equipment they like best. Every subscriber was surveyed, and the results were printed in an article titled “Most Popular Equipment among All Campers.” Why is the title of the article misleading?

Last Answer : For view, of course. Edit: ok, now I confused. Are you asking what makes the title misleading, or why the magazine makes the misleading title?

Is there a calculation in which infinities cancels out?

Description : Is there a calculation in which infinities cancels out?

Last Answer : There are many asymptotic functions that are expressed as the x or y value approaches infinity. They are not at all uncommon. And the ratio of two such functions would define something like a line. Students of Analytic Geometry as well as Calculus are quite familiar with the occurrence of infinity.

Why do polls say that they are accurate + - 3.00% of the time 19/20?

Description : Why do polls say that they are accurate + - 3.00% of the time 19/20?

Last Answer : Maybe it should be + – 3.05%