Question

Excluding stoppages, the speed of a bus is 54 km/h and including stoppages, it is 45 km/h. For how many minutes does the bus stop per hour?

 

पर्याय

• 9

• 10

• 12

• 20

Answer 1

10
Explanation:
Let the bus actually travels for 't' min in one hour.

Then, `54xxt/60=45`

⇒ `t=(45xx60)/24=50` min

So, the direction of stoppage in 1 hr  = 60 - 50 =10 min