excluding stoppages , the speed of a bus is 48 kmph and including stoppages , it is 45 kmph . for how many minutes does the bus stop per hour ?
"due to stoppages , it covers 314 km less . time taken to cover 3 km = ( ( 3 / 48 ) ã — 60 ) = 4.15 min . option ( b ) is correct"
multiply(const_60, divide(subtract(48, 45), 48))