Question

A train travels at 36 km per hour for 5 hours and 45 km per hour for 4 hours find its average speed

Answer 1

Answer:

40 km/h

Step-by-step explanation:

the train travels for 9 hours total

so,

distance travelled in first five hrs=36*5

                                                      =180km

distance covered in next 4 hrs =45*4

                                                   =180km

hence,

total distance=360 km

average speed=total distance/total time

                        =360/9

                        =40 km/h