Question

a car travels a certain distance in 40 minutes, if it runs at 54 km/h. How much time will it take to cover the same distance at a speed of 45 km/h

Answer 1

Distance= speed×time
= 54/60(km/min.) × 40
=36 minutes

now,speed =45 km/hr. = 45/60 km/min
distance=36 km
So,time = distance /speed
= 36 / 45/60
= 48 min
Answer = 48 minutes

THANKS

Answer 2

1.case

distance-x
time taken-2/3h
speed-54km/h

by calculation,
distance-36km


2.case

distance-36km

by calculation,
time-0.8h