Question

A car travels at an average speed of 50 km/hr; it stops for 90 seconds after travelling 37.5 kms of distance. How long does it take to reach 300 kms from the starting point?

• A. 5 hrs10 mins 30 secs
• B. 6 hrs10mins 30 secs
• C. 7 hrs10mins 30 secs
• D. 6 hrs21 mins
• E. None of these

Answer 1

The correct option is B

6 hrs10mins 30 secs

Time taken to travel 300 kms = 300 / 50 = 6 hrs

But the car stops after travelling 37.5 kms, so the number of stopping points in 300 kms will be = 300 / 37.5 = 8, but the last stopping point is actual end stopping.

So, number of stopping points will be 7, and time taken= 7$\times$1.5= 10.5 minutes

$\therefore$ Total time = 6 hrs 10 mins 30 seconds