1.

John and Priya went for a small picnic. After having their lunch Priya insisted to travelin a motor boat. The speed of the motor boat was 20 km/hr. Priya being a Mathematics student wanted to know the speed of the current. So she noted the time for upstream and downstream. She found that for covering the distance of 15 km the boat took 1 hour more for upstream than downstream. How much time boat took in downstream ?

Answer»

90 minute
15 minute
30 minute
45 minute

Solution :In DOWNSTREAM speed of boat = 20 + 10 = 30 km/hr
TIME take to COVER distance 15 km will be 30 minutes.
Thus (c) is correct option.


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