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(4) Mathematics (Q. No. 91-120)
91. The smallest 3-digit prime number is
(a) 103
(b) 107
(c) 109
(d) 113
(e) None of these
Answer – e
92. The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. The sum of the numbers is
(a) 28
(b) 32
(c) 40
(d) 64
Answer – c
93. 48.95- 32.006 = ?
(a) 16.089
(b) 16.35
(c) 16.89
(d) 16.944
Answer – c
97. The sum of three numbers is 264. If the first number be twice the second and third number be one- third of the first, then the second number is :-
(a) 48
(b) 54
(c) 72
(d) 84
Answer – c
98. The sum of the ages of a father and his son is 45 years. Five years ago, the product of their ages was 34. The ages of the son and the father are respectively.
(a) 6 and 39
(b) 7 and 38
(c) 9 and 36
(d) 11 and 34
Answer – b
100. In an election between two candidates, one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500 the number of valid votes that the other candidate got, was
(a) 2700
(b) 2900
(c) 3000
(d) 3100
Answer – b
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