Question

Rohit reaches his friend's place in 5 hours by driving his car at the speed of 70 km/h. How much more
time will it take him, if he drives at 50 km/h?​

Answer 1

Speed = distance / time

given ,

speed = 50 km/hr

time taken = 1.5 hr

distance = x

50 = x / 1.5

x = 75 km

if he was 15 min late,he should cover 75km in 1 hr 15 min = 1.25 hr

speed he drive the car = 75 / 1.25

                                     = 60

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