question: Find the least number must be subtracted from 568219 so that remaining no.is divisible by 5?
Options:
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4
answer: Stream of consciousness: On dividing 568219 by 5 we get the remainder 4, so 4 should be subtracted The answer is (E).
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question: 10 men and 15 women together can complete a work in 8 days. It takes 100 days for one man alone to complete the same work. How many days will be required for one woman alone to complete the same work?
Options:
(A) 127 days
(B) 667 days
(C) 177 days
(D) 187 days
(E) 600 days
answer: Stream of consciousness: 1 man's 1 day work = 1/100
(10 men + 15 women)'s 1 day work = 1/8
15 women's 1 day work = (1/8 - 10/100) = 1/40
1 woman's 1 day work = 1/600
1 woman alone can complete the work in 600 days. The answer is (E).
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question: The total number of apples and oranges in the refrigerator is 7 more than the total number of oranges and peaches in the refrigerator. How much lesser is the number of peaches in the refrigerator as compared to apples?
Options:
(A) 2
(B) 8
(C) 7
(D) 6
(E) 4
answer: Stream of consciousness: (Apples + Oranges) - (Oranges + Peaches) = 7
Apples - Peaches = 7 The answer is (C).
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question: A and B can do a work in 5 days and 10 days respectively. A starts the work and B joins him after 3 days. In how many days can they complete the remaining work?
Options:
(A) 4/3 days
(B) 2 days
(C) 8 days
(D) 3 days
(E) 9 days
answer:
Stream of consciousness: Work done by A in 3 days = 3/5
Remaining work = 2/5
Work done by both A and B in one day = 1/5 + 1/10 = 3/10
Remaining work = 2/5 * 10/3 = 4/3 days. The answer is (A).
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