App Logo

No.1 PSC Learning App

1M+ Downloads
The speed of a boat in still water is 20 kmph, and the speed of the stream is 2 kmph. In how many hours would the boat cover a distance of 198 km downstream?

A11 hours

B6 hours

C9 hours

D15 hours

Answer:

C. 9 hours

Read Explanation:

Downstream speed = Speed of boat + Speed of stream Downstream speed = 20 + 2 = 22 km/h Required time = 198/22 = 9 Hr


Related Questions:

A man rows a boat 18 km in 4 hour down stream and returns upstream in 12 hours. The speed of the stream in km/hr is
A boat moving downstream 28 km in 4 hours and upstream 20 km in 5 hours. Find the ratio between the speed of the stream and speed of a boat in still water
A speedboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. What is the speed of the stream in km/hr?
The speeds of two boats A and B in still water are 25 km/hr and 30 km/hr respectively. The boats are 165 km apart. If both begins moving toward each other, A going downstream while B upstream, then in how many hours they will meet?
A boy can swim in still water at a speed of 10 km/hr. If the speed of the current would have been 5 kmph, then the boy could swim 60km