Excluding the stoppages, the speed of a bus is 64 km/hr and including the stoppages the speed o the bus is 48km/hr. For how many minutes does the bus stop per hour?	Choose one:
A) 22	B) 15	C) 77	D) 28	E) 91
Answer: 15) 15 minutes
<result>B</result>
Excluding the stoppages, the speed of a bus is 64 km/hr and including the stoppages the speed o the bus is 48km/hr. For how many minutes does the bus stop per hour?