Question 53

Ajay can row hisboatin still water, at a speed of 6 kmph.If the speed ofthe stream is 4 kmph, how long will he take to a distance of 30 km downstream?

Solution

Ajay can row his boat in still water at a speed of 6 kmph. The speed of the stream is 4 kmph.

Speed of downstream $$=6+4 = 10kmph$$

Time taken to a distance of 30 km downstream $$=\frac{30}{10} =3 hr $$ $$[Time=\frac {Distance}{Speed}]$$

Option D is correct.

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