Question

A certain distance is been covered by 28 hours by walking the speed of 5 kilometre per hour and the speed is increased by 2 kilometre per hour then in how much time the same distance will be covered​

Answer 1

Answer:

Total distance =28×5=140 km

new speed =7km/hr

new time=140/7=20 hours

Answer 2

Answer:

in 5+2=7km per hr distance covered

speed=distance/tine

distance =speed X time

=7 X 28

=196 km