Question

A boat can row 35 km upstream in 7 hours and the same distance downstream in 5 hours. What is the speed (in km/hr) of the boat in still water?

विकल्प

• 5

• 7

• 9

• 6

Answer 1

6

Explanation:

`x + y = 35/5` = 7

`x - y = 35/7` = 5

`x = (7 + 5)/2` = 6 kmph