Question

a bus travelling at 80mph on a trip at 120kmph on return trip. what was its average speed for the entire trip​

Answer 1

100kmph

explanation: speed of bus on a trip= 80mph

{1mile=1.6km} speed of bus on a trip= $80*1.6 kmph$=128kmph

 speed of bus on return trip = 120kmph

avg. speed of bus for the entire trip=$\frac{80+120}{2} = \frac{200}{2} =100kmph$

hence, the avg. speed of bus for the entire trip is 100kmph.

                                                                   

Answer 2

Answer:

the average speed of the. entire trip is 96 mph