Question

a swimming pool is 50m long a boy can swim across the length and then return to its starting position in 5 minutes what is his swimming speed in kilometre per hour​

Answer 1

Answer:

SOLUTION: A swimming pool is 50 meters long. A boy can swim across the length and then return to his starting position in 5 meters. What is his swimming speed in km/hr? (Ans. 1.2 km/hr)

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Answer 2

Answer:

As he returns back total distance covered is 2 times the length of swimming pool.

distance =2×50 = 100 m =100/1000= 0.1 km

time taken =5 min =5/60 = 0.08 hrs

speed =distance/time taken

speed = 0.1/ 0.08 = 1.25 km/hr