Question

Anand leaves his house for school at 8.30 A.M. The school is 2 km away and classes start

at 9.00 A.M. If he walks at a speed of 5 km/h for the first kilometre, at what speed should

he walk the second kilometre to reach just in time?​

Answer 1

Answer:

speed is equal to 3 kilometres per hour for the first hour hence time taken =distance/speed=1/3 h time left=0.5 -1/3=0.5/3 distance left = 1 km hence speed at which he should walk second km would be 1/(0.5/3)= 6 km per hour