"Excluding stoppages, the sped of a bus is 54 kmph and including stoppages, it is 45
Channel: Doubtnut
Date: 2020-04-05

"Excluding
 stoppages, the sped of a bus is 54 kmph and including stoppages, it is 45
 kmph. For how many minutes does the bus stop per hour?
`9`
b. `\ 10`
c. `122`
d. `20`"