Question

please solve this frnds​

Answer 1

Answer:

speed = distance/time

distance=30 km       (as it is given it goes 15 km down and then it comes back

                                 so 15 x 2=30)

time is given as 3 hours and 45 minutes

it will be 3.45 hrs.

now, speed = 30/ 3.45

=8.69 km/h