Question

a car takes 45 min to cover a distance of 60 km. in how many min will it covered the same distance if the speed is reduced by 5km/hr​

Answer 1

Step-by-step explanation:

First calculate speed

*( 45 minutes = 45 ÷ 60 = 3/4 hours )

$v = \frac{x}{t} = \frac{60}{ \frac{3}{4} } = 80 \: kmph$

New speed = 80 - 5 = 75 km/hr

So time

$t = \frac{60}{75} = \frac{4}{5} hrs = 48 \: minutes$