Question

A car covers 30 km at a uniform speed of 60km/hr and the next 30km at a uniform speed of 40km/h . find the total time taken

Answer 1

It travels first 30 km at a speed of 60 km/hr.
Time = Distance/Speed
= 30/60 = 30 minutes.
It travels another 30 km at a speed of 40 km/hr.
Time = 30/40 = 45 minutes
Therefore, Total time taken = 30 min + 45 min = 1 hour 15 minutes

Answer 2

It travels first 30 km at a speed of 60 km/hr.

Time = Distance/Speed

= 30/60 = 30 minutes.

It travels another 30 km at a speed of 40 km/hr.

Time = 30/40 = 45 minutes

Therefore, Total time taken = 30 min + 45 min = 1 hour 15 minutes