1.

Two boats starts at the same instant to cross a river W metre wide. The faster boat reaches the other bank and returns back immediately. What are the distances travelled by them when they meet, where the speeds of these boats are b_1&b_2?

Answer»

`(2W)/(b_1+b_2)` , `(2W)/(b_1-b_2)`
`(2W)/(b_1+b_2),b_1,`(2W)/(b_1+b_2),b_2`
`(W)/(b_1+b_2) (b_1)
DATA insufficient

Answer :B


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