Question

A car with the speed of 60 km/hour completes a journey in 3 hrs. If the journey can be
completed in 4 hrs, what can be the speed of the car.

Answer 1

Ans.

The problem can be written mathematically,

Time (Hours) Speed (Kmph)
.... 3 ...................... 60
.... 4 ...................... ?

This is a normal problem, where Time and Speed are proportional to each other.

So, the required speed is
= (4×60)/3 = 80.

Therefore, 80 km/hour be the required speed of the car.