What is theleast number should be added to 1056, so the sum of the number is completely divisible by 23?
Options:
(A) 20
(B) 23
(C) 25
(D) 27
(E) 28
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(1056 / 23) gives remainder 21
21 + 2 = 23, So we need to add 2 So the answer is: (B).
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A person spends 40% of his salary on food, 25% on house rent, 15% on entertainment and 15% on conveyance. If his savings at the end of the month is Rs. 1200, then his salary per month in rupees is:
Options:
(A) 4000
(B) 24000
(C) 8000
(D) 10000
(E) None of these
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Total expenditure = 40 + 25 + 15 + 15 = 95%
Saving = (100 - 95) = 5%
5/100 Salary = 1200, Salary = 24000 Rs. So the answer is: (B).
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The no. of girls in a class are seven times the no. of boys, which value cannever be the of total students?
Options:
(A) 3
(B) 4
(C) 8
(D) 9
(E) 12
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Let the boys are X, then girls are 7X, total = X+7X = 8X
So it should be multiple of 8, 30 is not a multiple of 8. So the answer is: (C).
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