A bus covers a distance of 10 km in 12 minutes. If its speed is decreased by 25 km/h,then the time (in minutes) taken by the bus to cover the same distance is:

24

We know ,

Speed = \(\frac{Distance}{Time}\)

12 min =12× \(\frac{1}{60}\) hours

Speed = \(\frac{10×  60 }{12}\)

= 50 km/h

Reduced speed = 50 - 25 = 25 km/h

Time = \(\frac{Distance}{Speed}\)

= \(\frac{10}{25}\)

=  24 minutes