Question

a man reaches his office from his residence in 10 minutes at the rate of 6 km per hour. how long will he take if he walks at the rate of 8km per hour..

Answer 1

By solving the problem with unitary method;
If a man reachs his office in 10at rate of 6Km/H.
then a man will reach in X time at rate of 8kmp.
=6*10/60=1
1/8*60=7.5 minutes