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Problems on Numbers for Exam


HomeQuantitative Aptitude⇒ Quantitative Questions on Numbers

Q81. A two digit number is three times the sum of its digits. If 27 is added to the number, its digits are interchanged. The sum of the digits of the number is
(a) 5.4
(b) 3.7
(c) 2.9
(d) 7.3

Q82. A two digit number is 7 times the sum of its digits. The number formed by reversing its digits is 27 less than the original number. What is the number ?
(a) 41
(b) 45
(c) 54
(d) 63

Q83. The difference between two digit number and the number obtained by interchanging the positions of its digits is 36. The digit at unit place is one-third of the digit at ten's place in the original number. What is the original number ?
(a) 49
(b) 56
(c) 62
(d) 71

Q84. The sum of two number is 64. If three times of one number is equal to five times of the other, find the numbers
(a) 30 and 20
(b) 35 and 25
(c) 40 and 24
(d) 55 and 32

Q85. The sum of three consecutive multiples of 2 is 78. What is the smallest of these numbers ?
(a) 21
(b) 24
(c) 27
(d) 33



Q86. The sum of three consecutive multiples of 3 is 99. What is the largest of these numbers ?
(a) 20
(b) 25
(c) 28
(d) 36

Q87. If the difference between 3/5 th and 3/7 th of a number is 54, then the number would be
(a) 231
(b) 252
(c) 297
(d) 315

Q88. 15% of a number is 135. What is the 30% of the number ?
(a) 215
(b) 270
(c) 311
(d) 342

Q89. The product of two consecutive even numbers is 440. The numbers are
(a) 20 and 22
(b) 20 and 25
(c) 23 and 28
(d) 27 and 32

Q90. 2/5 of a number is 12 less than the original number. The number is
(a) 12
(b) 17
(c) 20
(d) 24


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