Question
Abhishek, Bobby and Charlie start from the same point
and travel in the same direction round an Island 6 km in circumference. Abhishek travels at the rate of 3, Bobby at the rate of 2(1/2)` ` and Charlie at the rate of 1(1/4) km/hour. In how many hours will they come together again?Solution
The correct answer is C
A man rows upstream 10 km and downstream 15 km taking 5 hours each. Find the speed of current.
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