What is the sum of all composite number between 20 and 30?

What is the sum of all composite number between 20 and 30?
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1 Answer

Answer :

173, excluding the two end-points.
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A close-coiled helical spring of stiffness 30 N/mm is arranged in series with another such spring of stiffness 60 N/mm. The stiffness of composite unit is (a) 20 N/mm (b) 30 N/mm (c) 45 N/mm (d) 90 N/mm

Description : A close-coiled helical spring of stiffness 30 N/mm is arranged in series with another such spring of stiffness 60 N/mm. The stiffness of composite unit is (a) 20 N/mm (b) 30 N/mm (c) 45 N/mm (d) 90 N/mm

Last Answer : (a) 20 N/mm

The sum of the squares between three numbers is 5000. The ratio between the first and the second number is 3:4 and that of second and third number is 4:5. Find the difference between first and the third number. A) 20 B) 30 C) 40 D) 50 E) None of these

Description : The sum of the squares between three numbers is 5000. The ratio between the first and the second number is 3:4 and that of second and third number is 4:5. Find the difference between first and the third number. A) 20 B) 30 C) 40 D) 50 E) None of these

Last Answer : Answer: A a^2 + b^2 + c^2 = 5000 a:b:c = 3:4:5 50x^2 = 5000. X = 10. 5x – 3x = 2*10 = 20

A student was once given a simple task to accomplish. He was given 6 numbers: 1, 10, 20, 30, 40, and 80, and was told to sum them together to be equal to 100. At last, he was able to accomplish this task. How did he do it? -Riddles

Description : A student was once given a simple task to accomplish. He was given 6 numbers: 1, 10, 20, 30, 40, and 80, and was told to sum them together to be equal to 100. At last, he was able to accomplish this task. How did he do it? -Riddles

Last Answer : He read 10 and 80 backwards to give him 01 and 08 respectively. So, 1 + 01 + 20 + 30 + 40 + 08 = 100.

What is the sum of 30 and difference of 20?

Description : What is the sum of 30 and difference of 20?

Last Answer : it is 25 and 5

What is the sum of 30 and difference of 20?

Description : What is the sum of 30 and difference of 20?

Last Answer : it is 25 and 5

The sum of ages of Mohan and his father is 35 years. When Mohan’s age will be equal to present age of his father, then sum of their ages will be 85 years. Find present age of the father. a) 20 years b) 25 years c) 30 years d) 32 years e) None of these

Description : The sum of ages of Mohan and his father is 35 years. When Mohan’s age will be equal to present age of his father, then sum of their ages will be 85 years. Find present age of the father. a) 20 years b) 25 years c) 30 years d) 32 years e) None of these

Last Answer : Sum of present ages = 35 years sum of their ages will be 85 years after (85-35) / 2 = 25 years from now. the father is 25 years older than his son. Present age of father = (35 + 25)/2 = 30 years. Answer: c)

The sum of the ages of two persons A and B is 50. 5 years ago, the ratio of their ages was 5/3. The present age of A and B are (A) 30, 20 (B) 35, 15 (C) 38, 12 (D) 40, 10

Description : The sum of the ages of two persons A and B is 50. 5 years ago, the ratio of their ages was 5/3. The present age of A and B are (A) 30, 20 (B) 35, 15 (C) 38, 12 (D) 40, 10

Last Answer : Answer: A

The ratio of the incomes of A and B last year was 9 : 13. Ratio of their incomes of last year to this year is 9 : 10 and 13 : 15 respectively. The sum of their present incomes is Rs 50,000. What is the present income of B? A) Rs 32,000 B) Rs 24,000 C) Rs 20,000 D) Rs 30,000 E) None of these

Description : The ratio of the incomes of A and B last year was 9 : 13. Ratio of their incomes of last year to this year is 9 : 10 and 13 : 15 respectively. The sum of their present incomes is Rs 50,000. What is the present income of B? A) Rs 32,000 B) Rs 24,000 C) Rs 20,000 D) Rs 30,000 E) None of these

Last Answer : Answer: D ratio of the incomes of A and B last year was 9x : 13y Now given that ratio of the incomes of A and B last year was 9 : 13. So 9x/13y = 9/13 This gives x = y Total of incomes of A ... = 50,000 This gives x = 2,000 So present income of B = 15y = 15x = 15*2000 = 30,000

. The inner wall of a furnace is at a temperature of 700°C. The composite wall is made of two substances, 10 and 20 cm thick with thermal conductivities of 0.05 and 0.1 W.m-1.°C-1 respectively. The ambient air is at 30°C and the heat transfer co-efficient between the outer surface of wall and air is 20 W.m-2 .°C-1 . The rate of heat loss from the outer surface in W.m-2 is (A) 165.4 (B) 167.5 (C) 172.5 (D) 175

Description : . The inner wall of a furnace is at a temperature of 700°C. The composite wall is made of two substances, 10 and 20 cm thick with thermal conductivities of 0.05 and 0.1 W.m-1.°C-1 respectively. The ambient air is at 30°C ... from the outer surface in W.m-2 is (A) 165.4 (B) 167.5 (C) 172.5 (D) 175

Last Answer : (A) 165.4

The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is: A.10 B.14 C.23 D.30 E.None of these

Description : The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is: A.10 B.14 C.23 D.30 E.None of these

Last Answer : Answer – C (23) Explanation – L.C.M. of 5, 6, 4 and 3 = 60. On dividing 2497 by 60, the remainder is 37. Number to be added = (60 – 37) = 23

The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the number is: A.30 B.22 C.40 D.60 E.None of these

Description : The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the number is: A.30 B.22 C.40 D.60 E.None of these

Last Answer : Answer – C (40) Explanation – Let the numbers be 2x and 3x. Then, their L.C.M. = 6x. So, 6x = 48 or x = 8. The numbers are 16 and 24. Hence, required sum = (16 + 24) = 40.

Sum of Rs.118 was shared among 50 boys and girls,each girl receive Rs.2.60 and boy receive Rs.1.80.Find the number of girls. A) 15 B)25 C)30 D)35

Description : Sum of Rs.118 was shared among 50 boys and girls,each girl receive Rs.2.60 and boy receive Rs.1.80.Find the number of girls. A) 15 B)25 C)30 D)35

Last Answer : D)35

Is 43 a prime or composite number if it is show all the factors?

Description : Is 43 a prime or composite number if it is show all the factors?

Last Answer : 43 is a Prime number whose only factors are itself and one

Is 5 a prime numbr or composite number?

Description : Is 5 a prime numbr or composite number?

Last Answer : Prime

Is Every multiple of 5 is a composite number and why?

Description : Is Every multiple of 5 is a composite number and why?

Last Answer : What is the answer ?

Why is 133 a composite number?

Description : Why is 133 a composite number?

Last Answer : 133 is a composite number because it has more than twofactors

What is the smallest composite number that has the five smallest prime numbers as factors?

Description : What is the smallest composite number that has the five smallest prime numbers as factors?

Last Answer : It is 2 × 3 × 5 × 7 × 11 = 2310

Is 2014 a composite number?

Description : Is 2014 a composite number?

Last Answer : Yes

Why is the following a poor definition for a composite number. A composite number has more than one factor.?

Description : Why is the following a poor definition for a composite number. A composite number has more than one factor.?

Last Answer : Prime numbers have rwo facrors

What is composite index number?

Description : What is composite index number?

Last Answer : Ans: It is number that measures an average relative change in a group of related variables with respect to a base. Composite Index number are further classified as: (1) Un-weighted composite Index Number (2) Weighted Composite Index Number

“Composite sleeper index” is employed to determine a) sleeper density requirement b) number of fixtures required for a particular type of sleeper c) durability of sleeper d) mechanical strength of wooden sleepers and thereby gives its suitability as to be used as li sleepers.*

Description : “Composite sleeper index” is employed to determine a) sleeper density requirement b) number of fixtures required for a particular type of sleeper c) durability of sleeper d) mechanical strength of wooden sleepers and thereby gives its suitability as to be used as li sleepers.*

Last Answer : d) mechanical strength of wooden sleepers and thereby gives its suitability as to be used as li sleepers.*

Two dice are thrown together. The probability that the total score is a composite number is: A) 5/12 b) 12/7 c) 7/12 d) 12/5

Description : Two dice are thrown together. The probability that the total score is a composite number is: A) 5/12 b) 12/7 c) 7/12 d) 12/5

Last Answer :  Answer: C)  Clearly, n(S) = (6 x 6) = 36. Let E = Event that the sum is a composite number Then E= { (1, 3), (1, 5), (2, 2), (2, 4), (2, 6), (3, 1), (3, 5), (3, 3), (3, 6), (4, 2), (4,4),(4, 5), (4, 6), ( ... 5,3),(5,4),(5,5),(6,2),(6,3),(6,4),(6,6) } n(E) = 21 P(E) = n(E)/n(S) = 21/36 = 7/12.

What is the sum of a number times 9 and 28 is at least -20 as an equation?

Description : What is the sum of a number times 9 and 28 is at least -20 as an equation?

Last Answer : 9*n + 28 >= -20.

One number is 3 more than another and the sum of their square is 269.Find the number. 1.10 2.12 3.15 4.20

Description : One number is 3 more than another and the sum of their square is 269.Find the number. 1.10 2.12 3.15 4.20

Last Answer : Answer-1 (10) Explanation:- x is one number x+3 the other x^2 +x^2 +6x+9 ; (that is (x+3)(x+3) =269 2x^2+6x -260=0 x^2+3x-130=0 , dividing by 2. (x+13)(x-10)=0 one number is 10, the other is 13 squared 10=100 square 13=169 sum is 269

Find the smallest number in a GP whose sum is 38 and product 1728? (a) 12 (b) 20 (c) 8 (d) none of these

Description : Find the smallest number in a GP whose sum is 38 and product 1728? (a) 12 (b) 20 (c) 8 (d) none of these

Last Answer : (c) 8

The total number of male, female and children working in a factory is 72. They earn Rs.16000 in a day. If the sum of the wages of all male, all female and all children is in the ratio of 36 : 20 : 24 and if the wages of an individual male, female and child is in the ratio 6 : 5 : 3, then how much a female earn in a day? a) Rs 500 b) Rs 1000 c) Rs 1500 d) Rs 1200

Description : The total number of male, female and children working in a factory is 72. They earn Rs.16000 in a day. If the sum of the wages of all male, all female and all children is in the ratio of 36 : 20 : 24 and if the ... 3, then how much a female earn in a day? a) Rs 500 b) Rs 1000 c) Rs 1500 d) Rs 1200

Last Answer : B Ratio of number of male, female and children =36/6:20/5:24/3 = 6x:4x:8x So, (6x + 4x + 8x) = 72 18x=72 X=72/18=4 So, x = 4 Therefore, number of female = 16 Share of all female =20/80*16000 =Rs 4000 So, Share of each female = 4000/4 = Rs 1000

What 2 factors of 30 have a sum of 13?

Description : What 2 factors of 30 have a sum of 13?

Last Answer : They are 10 and 3

What are two numbers that have the sum of 30 and the difference of 6?

Description : What are two numbers that have the sum of 30 and the difference of 6?

Last Answer : The numbers are 18 and 12

How do you find the sum of 1 thru 30?

Description : How do you find the sum of 1 thru 30?

Last Answer : Multiply 31 by 15 and you have your answer (465).

Sum of present ages of A and B is 60 years. 5 years hence, their ages will be in the ratio 3:4. Find A’s present age. a) 25 years b) 30 years c) 35 years d) 40 years e) None of these

Description : Sum of present ages of A and B is 60 years. 5 years hence, their ages will be in the ratio 3:4. Find A’s present age. a) 25 years b) 30 years c) 35 years d) 40 years e) None of these

Last Answer : Sum of their present ages = 60 years sum of their ages, 5 years hence = 60 + (5 × 2) = 70 years. after 5 years, ratio of ages of A and B will be 3 : 4. A’s age after 5 years = (3/7) × 70 = 30 years A’s present age = 30 – 5 = 25 years Answer: a)

The ages of Gaurav and Goutham will be in the ratio 5 : 7 after ten years from now and will be in the ratio 13 : 18 after twelve years from now. Find the ratio of the sum of their ages 10 years hence to the sum of their ages 12 years hence. 1 : 25 : 27 2 : 13 : 15 3 : 14 : 17 4 : 18 : 23 5 : 30 : 31

Description : The ages of Gaurav and Goutham will be in the ratio 5 : 7 after ten years from now and will be in the ratio 13 : 18 after twelve years from now. Find the ratio of the sum of their ages 10 years hence to the sum of their ages 12 ... hence. 1 : 25 : 27 2 : 13 : 15 3 : 14 : 17 4 : 18 : 23 5 : 30 : 31

Last Answer : 5 : 30 : 31

What will be the output? numberGames = {} numberGames[(1,2,4)] = 8 numberGames[(4,2,1)] = 10 numberGames[(1,2)] = 12 sum = 0 for k in numberGames: sum += numberGames[k] print len(numberGames) + sum Page No 36 a) 30 b) 24 c) 33 d) 12

Description : What will be the output? numberGames = {} numberGames[(1,2,4)] = 8 numberGames[(4,2,1)] = 10 numberGames[(1,2)] = 12 sum = 0 for k in numberGames: sum += numberGames[k] print len(numberGames) + sum Page No 36 a) 30 b) 24 c) 33 d) 12

Last Answer : a) 30

15 years ago, vaishali age was 15 times the age of her brother and the sum of present ages of vaishali and brother is 94years. What will be the age of her brother after 18 years? a) 32 years b) 33.5 years c) 37 years d) 30 years

Description : 15 years ago, vaishali age was 15 times the age of her brother and the sum of present ages of vaishali and brother is 94years. What will be the age of her brother after 18 years? a) 32 years b) 33.5 years c) 37 years d) 30 years

Last Answer : C

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Description : How can I install an aluminium composite panel?

Last Answer : The old standby’s: duct tape and baling wire. Oh, and self tapping screws.

How long would the staff of a composite bow be for a 28" draw?

Description : How long would the staff of a composite bow be for a 28" draw?

Last Answer : Wow. That is quite an undertaking. I have an old, left handed Ben Pearson BP-52 7329 that is rated at 50 pounds at 28 . It is called 52 inches but when unstrung and sitting on the floor its ... adjustable from 40 to 60# with an 80% let-off. If you want photos or more precise measurements PM me.

What is the best non-composite Little League baseball bat?

Description : What is the best non-composite Little League baseball bat?

Last Answer : Contact your local Little League and ask them, or the National Little League Assn.

Painful fillings after a month, normal? can a composite filling be filled up more?

Description : Painful fillings after a month, normal? can a composite filling be filled up more?

Last Answer : Looks like the work performed was something to be desired, since you mentioned that one molar’s filling is already chipped. You may want to get a second opinion from a well recommended dentist.

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Description : Anxious about dentist, allergies to composite fillings?

Last Answer : Tell the dentist about your concerns before he/she starts the work.

What is the formula for surface area of composite solids?

Description : What is the formula for surface area of composite solids?

Last Answer : surface area of composite solids

How good are Carbon Fibre reinforced Composite Materials at stopping Bullets?

Description : How good are Carbon Fibre reinforced Composite Materials at stopping Bullets?

Last Answer : There’s a thread on this subject with interesting points on a gun DB I’m not an expert on this subject at all, but I thought carbon fiber was too breakable (I’m into cars)

How do I decide on spoke count for a set of Edge Composite 45 clincher wheels?

Description : How do I decide on spoke count for a set of Edge Composite 45 clincher wheels?

Last Answer : I like 32 rear, 28 front. Your weight is a factor.

How do I connect my ipod touch 1st generation to the composite impute on my tv?

Description : How do I connect my ipod touch 1st generation to the composite impute on my tv?

Last Answer : http://www.fluther.com/disc/52593/how-do-i-connect-my-ipod-touch-to-my-tv/

In stocks, whats a composite index?

Description : In stocks, whats a composite index?

Last Answer : It is pretty much a grouping of stocks to track growth or lack there of. For example The Dow Jones industrial Average tracks 30 stocks and assigns a numerical value for the combined value of the 30. This is ... drag it down the index a bit but it won't seem as bad. It normalizes the bigger picture.

How to splice an s-video cable to an RCA (composite) cable?

Description : How to splice an s-video cable to an RCA (composite) cable?

Last Answer : Amazon (and many others, I’m sure) has plenty of cables that should do the trick.

Are there bluetooth composite adapters.

Description : Are there bluetooth composite adapters.

Last Answer : answer:Hi Davey, Is it audio and audio plus video that you're trying to transmit from the computer/laptop? It would seem that the current Bluetooth specifcation (2.0) does have sufficient bandwidth for ... on this project or if you find any other Bluetooth video streaming hardware (I'm curious too).

From the following which is the step of machine cell design? a.Divide parts into part families b.Select type of machine cell c.Prepare a composite part d.All of the above

Description : From the following which is the step of machine cell design? a.Divide parts into part families b.Select type of machine cell c.Prepare a composite part d.All of the above

Last Answer : d.All of the above

Which one of the following is not a direct rapid tooling method? a.LOM Composite b.Direct AIM (ACES Injection Molding) c.Sand Molding d.Injection molding

Description : Which one of the following is not a direct rapid tooling method? a.LOM Composite b.Direct AIM (ACES Injection Molding) c.Sand Molding d.Injection molding

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Give one example to show that while giving impetus to the national movement, the assertive nationalist presented one-sided picture of India’s composite culture? -SST 10th

Description : Give one example to show that while giving impetus to the national movement, the assertive nationalist presented one-sided picture of India’s composite culture? -SST 10th

Last Answer : The assertives nationalists in order to glorify India’s past presented one-sided picture of India’s composite culture. They praised Shivaji and Rana Pratap, while they remained silent on Akbar and Sher Shah Suri.

Q2. What are the advantages of composite fish culture? -Science

Description : Q2. What are the advantages of composite fish culture? -Science

Last Answer : Advantages of composite fish culture are: In a single fish pond, a combination of 5 or 6 types of fish species can be cultured since they do not compete for food among them. Food resource can be completely utilized Survival of the fish also increases More yield

What to you mean by Compound or Composite Event? -Maths 9th

Description : What to you mean by Compound or Composite Event? -Maths 9th

Last Answer : An event containing more than one sample point is called a compound or composite event. It is a subset of the sample spaces. For example, (i) If a die is thrown, then the statement getting an odd number on the top is ... If A be the event that one head and one tail turn up, then A = {(HT), (TH)}