A boat travels 24 km upstream in 6 hours and 20 km downstream in 4 hours Then the speed of boat in still water and the speed of current water are respectively:

Challenger App

No.1 PSC Learning App

★

1M+ Downloads

Get App

A boat travels 24 km upstream in 6 hours and 20 km downstream in 4 hours Then the speed of boat in still water and the speed of current water are respectively:

A4 kmph and 3 kmph

B4.5 kmph and 0.5 kmph

C4 kmph and 2 kmph

D5 kmph and 2 kmph

Answer:

B. 4.5 kmph and 0.5 kmph

Read Explanation:

Let the speed of boat in still water = X kmph Speed of water = Y kmph Relative speed of boat in upstream = X – Y = 24/6 = 4 kmph …… (1) Relative speed of boat in downstream = X+ Y = 20/4 = 5 kmph …… (2) After solving these two equations : X = 4.5 kmph and Y = 0.5 kmph

Related Questions:

In one hour, a boat goes 13 km/hr in the direction of the stream and 7 km/hr against the direction of the stream. What will be the speed of the boat in still water?

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?

In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water (in km/hr) is :

A motor-boat, travelling at the same speed, can cover 25 km upstream and 39 km downstream in 8 hours. At the same speed, it can travel 35 km upstream and 52 km downstream in 11 hours. The speed of the stream is

നിശ്ചലമായ വെള്ളത്തിൽ മണിക്കൂറിൽ 20 km വേഗതയിൽ സഞ്ചരിക്കുന്ന മോട്ടോർ ബോട്ട് 30 km താഴേക്ക് പോയി മൊത്തം 4 മണിക്കൂറിനുള്ളിൽ തിരിച്ചെത്തുന്നു.സ്ട്രീമിന്റെ വേഗത?