A man rows his boat 85 km downstream and 45 km upstream, taking 2 1/2 hours each time. Find the speed of the stream?

Related Mcqs:

A boat takes half time in moving a certain distance downstream than upstream. What is the ratio between the rate in still water and rate of current?

A. 1 : 2 B. 3 : 1 C. 2 : 1 D. 1 : 3...

A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will he take to go 5km in stationery water?

A. 40 Minutes B. 1 Hour C. 1 hr 15 Min D. 1 Hr 30 Min...

A boat can move upstream at 25 kmph and downstream at 35 kmph, then the speed of the current is_________?

A. 5 kmph B. 10 kmph C. 30 kmph D. 15 kmph...

The speed of a boat in upstream is 60 kmph and the speed of the boat downstream is 80 kmph. Find the speed of the boat in still water and the speed of the stream?

A. 70, 10 kmph B. 35, 27 kmph C. 50, 60 kmph D. 45, 55 kmph...

The speed at which a man can row a boat in still water is 15 kmph. If he rows downstream, where the speed of current is 3 kmph, what time will he take to cover 60 metres?

A. 10 seconds B. 15 seconds C. 20 seconds D. 12 seconds E. None of these...