SSC Government Jobs Exams Numerical Ability Time Distance and Speed

A man can swim 3km/hr in still water . If the velocity of the stream is 2 km/hr, the time taken by him to swim to a place 10 km upstream and back is

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SSC Other Question
A man buys 3 cows and 8 goats in 47200. Instead , if he would have bought 8 cows and 3 goats, he had to pay 53 000 more. cost of one cow is A man undertakes to do a certain work in 150 days . He employs 200men. He finds that only a quarter of the work is done in 50 days. The number of additional men that should be appointed so that the whole work will be finished in time is