Question

Anand leaves his house at 8.30 A.M for his school. The school is 2 km away and classes start at 9.00 A.M. If he walks at a speed of 3 km/h for the first kilometre, at what speed should he walk the second kilometre to reach just in time?​

Answer 1

Answer:

6km/h

Explanation:

A-----------B-----------C

let A is anand house

B is1km distance apart from his house

C is school

we know time =distance/speed

tAB=1/3 hour

tAB is time takenfrom A to B

tBC=1/2-1/3 =1/6hour

so, speed=distance/time=1/(1/6)=6km/h