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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 152. |
If the L.C.M of two numbers is 750 and their product is 18750, find the H.C.F of the numbers. |
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Answer» H.C.F = (PRODUCT of the NUMBERS) / (Their L.C.M) = 18750/750 = 25. |
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| 153. |
What is the sum of all even numbers from 1 to 701? |
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Answer» 122850 700/2 = 350 |
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| 154. |
The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? |
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Answer» Let the NUMBER be x. Then, x + 1/x = 34/8 8x2 - 34X + 8 = 0 4x2 - 17X + 4 = 0 (4x - 1)(x - 4) = 0 x = 4 required number = 4 * √4 = 4 * 2 = 8. |
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| 155. |
The sum of the digits of a two-digit number is 15 and the difference between the digits is 3. What is the two-digit number? |
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Answer» Cannot be determined Let the ten's DIGIT be X and unit's digit by y Then, x + y = 15 and x - y = 3 or y - x = 3 Solving x + y = 15 and x - y = 3, we get: x = 9, y = 6 Solving x + y = 15 and y - x = 3, we get: x = 6, y = 9 So, the number is either 96 or 69. Hence, the number cannot be determined. |
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| 156. |
A certain number successively divided by 2, 5 and 7 leaves remainders 1, 2 and 3 respectively. When the same number is divided by 70, what is the remainder? |
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Answer» 35 NA |
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| 157. |
732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ? |
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Answer» 651.68 ? = 1361.20 - 709.52 = 651.68 |
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| 159. |
What is the sum of 1 + 2 + 3+ ... + 27 ? |
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Answer»
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| 160. |
What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227 |
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Answer»
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| 161. |
On converting the following base-2 numeral in base ten, 1101101, we get |
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Answer» 108 109 |
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| 162. |
Look at this series: 201, 202, 204, 207, ... What number should come next? |
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Answer» In this ADDITION series, 1 is added to the FIRST number; 2 is added to the second number; 3 is added to the third number; 4 is added to the fourth number; and GO on. |
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| 163. |
A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15? |
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Answer»
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| 164. |
728.038 x 54.978 - 72.016 x 85.250 = ? |
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Answer» 33900
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| 165. |
96% of a number is 19584 What is 56% of that number ? |
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Answer» 11424 Let the NUMBER be X. |
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| 166. |
1256+4813+765=? |
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Answer» 6834 1256+4813+765 |
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| 167. |
If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is: |
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Answer» 160 Let the numbers be x and y. Then, x + y = 20 and x - y = 8 x2 - y2 = (x + y)(x - y) = 20 * 8 = 160. |
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| 168. |
The sum of three consecutive numbers is 87. The greatest among these three number is: |
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Answer» 30 Let the NUMBERS be X, x + 1 and x + 2 Then, x + (x + 1) + (x + 2) = 87 3x = 84 x = 28 Greatest NUMBER, (x + 2) = 30. |
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| 169. |
If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is: |
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Answer» 40 Then, (x + y) = 22 and X2 + y2 = 404 Now, 2XY = (x + y)2 - (x2 + y2) 2xy= 222 - 404 = 484 - 404 = 80 xy = 40 |
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| 170. |
How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? |
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Answer» 1092 NA |
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| 171. |
Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next? |
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Answer» 25 In this simple alternating subtraction and addition SERIES; 1 is SUBTRACTED, then 2 is added, and so on. |
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| 172. |
If 4 2/3 is subtracted form 10 1/2 and the difference is multiplied by 450, then what is the final answer? |
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Answer» NONE of these NA |
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| 173. |
The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is: |
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Answer» 4/5 1/x - x = 9/20 20x2 + 25X - 16x - 20 = 0 5x(4x + 5) -4(4x + 5) = 0 (4x + 5)(5x - 4) = 0 x = 4/5 |
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| 174. |
One-eighth of a number is 76. What will be 54% of the number ? |
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Answer» 328.32 Let the no. be X |
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| 175. |
The sum of the digits of a two digit number is 12. If the new number formed by reversing the digits is greater than the original number by 54, then what will be the original number? |
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Answer» 39 39 |
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| 176. |
If 35% of a number is 899.5, what is 68% of that number ? |
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Answer» 1747.6 Suppose the NUMBER is X. |
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| 177. |
In each of the following numbers, what should be the missing digit in the indicated place such that the number is a multiple of 11? |
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Answer» 8 Divisibility of 11: If the difference of the sum of the DIGITS at ODD places and the sum of the digits at EVEN places of a number is zero or a multiple of 11, then that number is divisible by 11. As per divisibility rule of 11, difference = (x + 21) - 18 = x + 3 => x + 3 = 11 => x = 8 |
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| 178. |
In how many different ways can the letters of word "SENTENCE" be arranged ? |
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Answer» 3360
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| 179. |
If a + b = 16 and ab = 68, what is the value of a² + b² ? |
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Answer» 120
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| 180. |
A basket contains 5 blue, 4 green and 3 red ball. If three balls are picked at random, what is the probability that at least one is red ? |
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Answer» 34/55 Probability of having no RED BALL is |
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| 181. |
Which one of the following is the sum of the numbers 1, 3, 5, 7, 9…. up to nth number? |
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Answer» N2 NA |
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| 182. |
Look at this series: 36, 34, 30, 28, 24, ... What number should come next? |
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Answer» 22 This is an alternating NUMBER subtraction SERIES. FIRST, 2 is SUBTRACTED, then 4, then 2, and so on. |
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| 183. |
Look at this series: XXIV, XX, __, XII, VIII, ... What number should fill the blank? |
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Answer» XVI This is a SIMPLE subtraction SERIES; each NUMBER is 4 less than the previous number. |
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| 184. |
What is the difference between the largest number and the least number written with the digits 7, 3, 1, 4? |
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Answer» 6084 NA |
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| 186. |
(1024—263—233)÷(986—764— 156) =? |
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Answer» 8 8 |
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| 187. |
A, B, C, D and E are consecutive even numbers respectively. The average of 5 numbers is 82. What is the product of C and E ? |
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Answer» 6383 x + x + 1 + x + 2 + x + 3 + x + 4= 5 x 82 |
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| 188. |
What is the sum of all the numbers between 300 and 1000 which are divisible by 179? |
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Answer» 2506
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| 189. |
In how many different ways can 7 boys and 3 girls sit in a row such that all the three girls do not sit together ? |
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Answer» 3386880 A total of (7 + 3) PERSONS = 10 personal can sit in 10! ways. |
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| 190. |
If the three fourth of a number is subtracted from the number; the value so, obtained is 163. What is that number ? |
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Answer»
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| 191. |
Of an amount, 20% of 25% of 30% is Rs 75. Then what is the original amount ? |
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Answer» Let the AMOUNT be x. |
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| 192. |
How many numbers up to 200 are divisible by 2 and 3 both? |
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Answer» 200/6 = 33 2/6 => 33 NUMBERS |
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| 193. |
Look at this series: 1.5, 2.3, 3.1, 3.9, ... What number should come next? |
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Answer» 4.7 In this SIMPLE ADDITION SERIES, each NUMBER INCREASES by 0.8. |
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| 194. |
Look at this series: 14, 28, 20, 40, 32, 64, ... What number should come next? |
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Answer» 56 This is an ALTERNATING multiplication and subtracting series: FIRST, MULTIPLY by 2 and then subtract 8. |
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| 195. |
Look at this series: 8, 22, 8, 28, 8, ... What number should come next? |
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Answer» 34 This is a SIMPLE addition series with a random number, 8, interpolated as EVERY other number. In the series, 6 is added to each number except 8, to arrive at the NEXT number. |
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| 196. |
Look at this series: 2, 4, 6, 8, 10, ... What number should come next? |
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Answer» 12 This is a SIMPLE ADDITION series. Each number INCREASES by 2. |
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| 197. |
Look at this series: 31, 29, 24, 22, 17, ... What number should come next? |
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Answer» 15 This is a SIMPLE alternating subtraction series, which SUBTRACTS 2, then 5. |
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| 198. |
How many figures are required to number the pages the pages of a book containing 365 pages? |
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Answer» 987 NA |
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| 199. |
Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is: |
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Answer» Let the THREE integers be x, x + 2 and x+ 4. Then, 3X = 2(x + 4) + 3 x = 11 Third integer = x + 4 = 15. |
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| 200. |
What is the least number that should be added to 5200 to make it a perfect square ? |
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Answer» 129 We sec (73)² = 5329 and (72)² = 5184 |
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