Question

A car moves with a speed of 80 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by car is-
a. 100 km
b. 50 km
c. 35 km
d. 70 km​

Answer 1

Answer:

1/4 of 80 is 20 km and in first case it travel 20 km

1/4 of 60 is 15 km so next distance covered was 15 km

so total distance = 35km

if you are confused about why u have taken 1/4th

it bcoz that it is mentioned per hour there and it travels for 15 min so 15 min is 1/4 th of 1 hour and that's why we have taken 1/4th.