Answer this question step wise..

Q. A bus leaves Town X at 21 30 and arrives in Town Y at 08 00 the next day.calculate?

a) the time taken for the journey ?

b) the average speed of the bus, given that the distance from Town X to Town Y is 651 km.

a)

21:30 to 24:00 is 2 hours 30 min..

24:00 to 8:00 is 8 hours..

8 hours + 2 hours 30 min = 10 hours 30 min

b)

651 km in 10 hours 30 min..

is also 651 km in 10.5 hours..

651/10.5 = 62 km/hr

a 10hours 30 minutes
b651/10.5=62km/h