Description : Cubes of the numbers for which the digits in the units place are 2,8 nd 3,7 end s in _________ and respectively.
Last Answer : Cubes of the numbers for which the digits in the units place are 2,8 nd 3,7 end s in _________ and respectively.
Description : Binary code comprises of digits from 0 to 9. a) True b) False
Last Answer : Answer: b Explanation: The statement is false. Binary as the word suggests contains only 2 digits : 0 and 1. 0 denotes false and 1 denotes a truth value
Description : A number with both integer and a fractional part has digits raised to both positive and negative powers of 2 in a decimal number system. a) True b) False
Last Answer : Answer: b Explanation: In a decimal number system, a number with both integer and a fractional part has digits raised to both positive and negative powers of 10 and not 2. e.g. 22.34 = 2 * 101 + 2 * 100 + 3 * 10-1 + 4 * 10-2
Description : A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. 7. Two faces measuring 4 cm x 1 cm are coloured in black. 8. Two faces measuring 6 cm x 1 cm are coloured in red. 9. Two faces measuring ... 1 cm(from 4 cm side). How many small cubes will be formed? (a)6 (b)12 (c)16 (d)24
Last Answer : Answer key : (d)
Description : A two digit number is such that the sum of the digits is 11.When the number with the same digits is reversed is subtracted from this number, the difference is 9.What is the number? 1. 23 2. 24 3. 65 4. 14 5. 32
Last Answer : Answer- 3(65) Explanation:- let the number be written as xy x-ten’s place y units place x+y=11…………………1 (10x+y)-(10y+x)=9 10x+y-10y-x=9 9x-9y=9 x-y=1………………….2 Add (1) & (2) 2x=12 x=6 y=5 the number is 65
Description : Write the given sets in roster form: (a). P = {y: y is an integer and -4 < y < 6}. (b). Q = {y: y is a natural number which is
Last Answer : (i) A = {x: x is an integer and †3 < x < 7} The elements of this set are †2, †1, 0, 1, 2, 3, 4, 5, and 6 only. Therefore, the given set can be written in roster form as A = {†2, †... and 80 only. Therefore, this set can be written in roster form as C = {17, 26, 35, 44, 53, 62, 71, 80}}.
Description : 0,1,2,3,4,5,6,7,8,9 Use the digits above once each only to compose two fractions which when added togeather equal 1. -Riddles
Last Answer : 35/70 + 148/296 = 1
Description : Which of the following digits have two lines of symmetry ? `0,1,2,3,4,5,6,7,8,9`
Last Answer : Which of the following digits have two lines of symmetry ? `0,1,2,3,4,5,6,7,8,9`
Description : The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately A) 16 digits B) 6 digits C) 9 digits D) All of above
Last Answer : Answer : A
Description : The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately a. 16 digits b. 6 digits c. 9 digits d. All of above
Last Answer : d. All of above
Description : A certain number has three digits. The sum of the three digits equals 36 times this number. Seven times the left digit plus 9 is equal to 5 times the sum of the two other digits. 8 times the second digit minus 9 is equal to the sum of the first and third.What is the number? -Riddles
Last Answer : This one is fairly easy - 324 is the answer.
Description : In a two-digit number, the sum of the digits is 9. If 9 is subtracted from the number, then the digits get reversed. Find the product of the digits
Last Answer : In a two-digit number, the sum of the digits is 9. If 9 is subtracted from the number, then the digits get reversed. Find the product of the digits
Description : What is the difference between the values of the digits 9 and 8 in the number 1890600?
Last Answer : 800000 - 90000 = 710000
Description : The digits used in binary number system are ____and____: a) 1 and 2 b) 0 and 1 c) 0 and 9 d) None of The Above
Last Answer : b) 0 and 1
Description : Three cubes of side 3 cm. 4 cm, 5 cm respectively are melted to form a new cube. The side of the new cube will be a) 6cm b) 6.5 cm c) 70cm d) 5 cm e) 4.5 cm
Last Answer : a) 6cm
Description : A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. 2. Two faces measuring 4 cm x 1 cm are coloured in black. 3. Two faces measuring 6 cm x 1 cm are coloured in red. 4. Two faces ... and black colours on at least one side of the cube will be formed? (a)16 (b)12 (c)10 (d)4
Description : How many 3-digit numbers are there in which the product of those 3 digits is 9?
Last Answer : 119, 191, 911, 331, 313, 133
Description : How many digits are there in Mobile Money Identifier(MMID)? A. 7 digits B. 9 digits C. 10 digits D. 11 digits E. None of the Above
Last Answer : A. 7 digits Explanation: Mobile Money Identifier is a 7 digit number, issued by banks. MMID is one of the input which when clubbed with mobile number facilitates fund transfer. Combination of ... and helps in identifying the beneficiary details. Different MMID s can be linked to same Mobile Number.
Description : The hexadecimal digits are 0 to 9 and A to _____: a) E b) G c) F d) None of The Above
Last Answer : c) F
Description : Suresh and Ramesh are twins. In a form by mistake, Suresh reverses the last 2 digits of his year of birth, and this makes him 9 years older than Ramesh. With this mistake, the sum of their ages in 2015 becomes 43. How old will Ramesh be 2021? a) 17 b) 19 c) 21 d) 23 e) 25
Last Answer : Let the correct ages of Ramesh and Suresh be X in 2015 (since they are twins, they will have the same age) Given: 2x + 9 = 43 Or x = 17 years in 2015. Age in 2021 = 17 + 6 = 23 Note: year of birth = 2015 – 17 = 1998. Reversing, Suresh = 1989 or 9 year older. Answer: d)
Description : In a certain code language,'134' means 'good and tasty';'478' means 'see good pictures' and'729' means 'pictures are faint'. Which of the following digits stands for 'see'? a) 9 b)2 c) 1 d) 8
Description : How many numbers greater than 400 can be formed with digits 3,4,8,9 with no digits being repeated? a) 24 b) 18 c) 42 d) 45
Last Answer : c) 42
Description : Two cubes of edge 6 cm are joined to form a cuboid. Find the total surface area of the cuboid. -Maths 9th
Last Answer : When two cubes are joined end to end, then Length of the cuboid = 6 + 6 = 12 cm Breadth of the cuboid = 6 cm Height of the cuboid = 6 cm Total surface area of the cuboid = 2 (lb + bh + hi) = 2(12 x6 + 6×6 + 6×12) = 2(72 + 36 + 72) = 2(180) = 360 cm2
Description : If three cubes of copper, each with an edge 6 cm, 8 cm and 10 cm respectively are melted to form a single cube, -Maths 9th
Last Answer : 20.8 cm Let the edge of the single cube be ‘a’ cm. Then, total volume melted = Volume of cube formed ⇒ (6)3 + (8)3 + (10)3 = a3 ⇒ a3 = 216 + 512 + 1000 = 1728 ... Diagonal of the new cube = 3–√a=(3–√×12)3a=(3×12) cm = 20.8 cm (approx.)
Description : A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. 17. Two faces measuring 4 cm x 1 cm are coloured in black. 18. Two faces measuring 6 cm x 1 cm are coloured in red. 19. Two faces ... colour on two sides and rest of the four sides having no colour ? (a)12 (b)10 (c)8 (d)4
Last Answer : Answer key : (c)
Description : A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. 12. Two faces measuring 4 cm x 1 cm are coloured in black. 13. Two faces measuring 6 cm x 1 cm are coloured in red. 14. Two ... How many cubes will have 4 coloured sides and two non-coloured sides ? (a)8 (b)4 (c)16 (d)10
Last Answer : Answer key : (b)
Description : Four solid cubes of different metals, each one having a mass of one kg are weighed in water select the correct statement: (a) all cubes weigh equal (b) cube with minimum density weighs minimum (c) cube with minimum density weighs maximum (d) the mass of all cubes will be the same
Last Answer : Ans:(b)
Description : Ice cubes are added to a glass of pure water and a glass of pure alcohol. The ice would be – (1) at a higher level in water (2) at a higher level in alcohol (3) at the same level in both (4) floating in alcohol and sinking in water
Last Answer : (1) at a higher level in water Explanation: Density of water is approx 1 g/ml; Density of Ice is approx 0.93g/ml; and Density of 100% pure ethanol is 0.79g/ml. So the density of ice cubes is lesser than water, but higher than alcohol. So it will float in water, but sink in alcohol.
Description : Pick out the wrong statement. (A) Economy of a multiple effect evaporator is not influenced by the boiling point elevation (B) Two identical cubes of iron and copper will have the same heat ... in the field of refrigeration (D) Finned tube heat exchangers are suitable for heating air by steam
Last Answer : (B) Two identical cubes of iron and copper will have the same heat content under the same conditions of temperature
Description : A cube of side 4cm is painted with 3 colors red, blue and green in such a way that opposite sides are painted in the same color. This cube is now cut into 64 cubes of equal size. ➢ How many ... one side painted. ➢ How many cubes have no side painted. ➢ How many have exactly one side not painted.
Last Answer : Here are the answers. Cubes that have at least two sides painted in different colours are 24 + 8 = 32. Cubes that have only one side painted are 24. Cubes that have no side painted = 8. Cubes that have exactly one side not painted = 0.
Description : A cube of side 4cm is painted with 3 colors red, blue and green in such a way that opposite sides are painted in the same color. This cube is now cut into 64 cubes of equal size. 1. How many ... side painted. 3. How many cubes have no side painted. 4. How many have exactly one side not painted.
Last Answer : Here are the answers. 1. Cubes that have at least two sides painted in different colours are 24 + 8 = 32. 2. Cubes that have only one side painted are 24. 3. Cubes that have no side painted = 8. 4. Cubes that have exactly one side not painted = 0.
Description : Ice cubes are added to a glass of pure water and a glass of pure alcohol. The ice would be (1) at a higher level in water (2) at a higher level in alcohol (3) at the same level in both (4) floating in alcohol and sinking in water
Last Answer : at a higher level in water
Description : The 2 digit number which becomes (5/6)th of itself when its digits are reversed. The difference in the digits of the number being 1, then the two digits number is (a) 45 (b) 54 (c) 36 (d) None of these
Last Answer : (b) 54
Description : The Postal Index Number (PIN) must contain: - (a) 5 digits (b) 4 digits (c) 7 digits (d) 6 digits
Last Answer : (d) 6 digits
Description : Number of girls enrolled in only Dancing classes is what per cent of the boys enrolled in the same? (Rounded off to two digits after decimal) (1) 38•67 (2) 35•71 (3) 41•83 (4) 28•62 (5) None of these
Last Answer : (2) 35•71
Description : What statements about the value of the digits in the number 6666666 are true?
Last Answer : They're all sixes.Each six to the left is ten times greater than the oneimmediately to its right.Each six to the right is ten times less than the one immediatelyto its left.
Description : What is the largest 3-digit odd number that can be formed using the digits 215 and 6?
Last Answer : 651
Description : I am a two-digit number. All my digits are even. No two digits are the same. None of my digits are prime numbers. I am not a multiple of ten. My tens digit is bigger than my other numbers. ... big the number is) of all the other options with their digits added together. What number am I? -Riddles
Last Answer : If you followed all the steps apart from the last one there will be three options remaining: 64, 84, and 86. You then had to add up the digits, 64=6+4=10, 84=8+4=12, and 86=8+6=14. ... biggest number (12) and put it back as it was before the digits were added together and your answer should be 84.
Description : I am a five-digit whole number, read the same forward, backward and upside down. My second digit is half my third digit; my fifth digit is the product of my first and last digits; and the sum of my whole is ten. What am I? -Riddles
Last Answer : 10801
Description : The square of a two digit number is divided by half the number. After 36 is added to the quotient, this sum is then divided by 2. The digits of the resulting number are the same as those in ... 's place of the original number is equal to twice the difference between its digits. What is the number?
Last Answer : Answer: 46
Description : The average of the 3 digit number, which remain the same when the digits interchange their positions is. A) 444 B) 555 C) 666 D) 777
Last Answer : B) Average = (111+222+333+444+555+666+ 777+888+999)/9 =(111+999)+(222+888)+ (333+777)+(444+666)+ 555/9 =(4*1110)+555/9 =4440 + 555/9 =4995/9 =555.
Description : Which of the following statements is true? (A) Enzymes have names ending ase (B) Enzymes are highly specific in their action (C) Enzymes are living organisms (D) Enzymes get activated on heating
Last Answer : Answer : B
Description : What is true in regard to lateral mandibular incisors A. 20% have 2 canals with one foramen B. 20% have 2 canals with two foramina C. 40% have two canals with 10% ending in two foramina D. 40% have two canals with only one ending in two foramina
Last Answer : D. 40% have two canals with only one ending in two foramina
Description : Find the smallest number which must be subtracted from the following to make them perfect cubes .What are the corresponding cube roots?
Last Answer : Find the smallest number which must be subtracted from the following to make them perfect cubes .What are the ... A. 350 B. 833 C. 1400 D. 1730
Description : The BCD adder to add two decimal digits needs minimum of (A) 6 full adders and 2 half adders (B) 5 full adders and 3 half adders (C) 4 full adders and 3 half adders (D) 5 full adders and 2 half adders
Last Answer : (D) 5 full adders and 2 half adders
Description : In the same way you can make four fives in an equation to equal 100, (5+5)X(5+5)=100, can you make an equation with only four sevens and no other digits to make 100? -Riddles
Last Answer : (7/.7)X(7/.7)=100 As 7/.7 = 10 The equation becames equivalent to 10X10
Description : Which is true for Digital Computer: a) It is less accurate than analog computer b) It is used primarily in scientific applications c) It represents the decimal numbers through a string of binary digits d) None of The Above
Last Answer : b) It is used primarily in scientific applications
Description : The mean proportional to 4 and 9 is 6. is it true or false?
Last Answer : The mean proportional to 4 and 9 is 6. is it true or false?