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A boat goes at 14 kmph along the stream and 8 kmph against the stream. The speed of the boat (in kmph) in still water is :

A12 kmph

B11 kmph

C10 kmph

D8 kmph

Answer:

B. 11 kmph

Read Explanation:

Solution:

Given:

Rate of Downstream = 14 kmph

Rate of Upstream = 8kmph

Calculation:

Speed of boat in still water = 12\frac{1}{2} (rate downstream + rate upstream)

=12(14+8)=222=11kmph=\frac{1}{2}(14+8)=\frac{22}{2}=11kmph

Speed of Boat in Still Water is 11kmph.


Related Questions:

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 rowing team rows a boat and covers a distance of 15 km in 5 hours while going upstream. When they go downstream, they cover a distance of 24 km in 4 hours. Find the speed of the boat in still water?
A boatman goes 4 km against the current of the stream in 1 hour and goes 2 km along the current in 10 minutes. How long will it take to go 24 km in stationary water?
പുഴയിൽ ഒഴുക്കിന് എതിരായി മണിക്കൂറിൽ 8 കി.മീ വേഗത്തിലും അനുകൂലമായി അതിലിരട്ടി വേഗത്തിലും ഒരു ബോട്ട് നീങ്ങുന്നു. നിശ്ചല ജലത്തിൽ ബോട്ടിന്റെ വേഗതയെന്ത് ?
If sum of upstream and downstream speed of a boat is 82 kmph, and the boat travels 105 km. upstream in 3 hr, Find the time taken by boat to cover 141 km downstream.