Question

a girl while riding a bicycle moves with a speed of 10 km per hour for 2 hours and with speed of 15 km per hour for next 3 hour find the total distance moved by her and finds her average speed

Answer 1

distance covered by her in first 2 hours = 10*2
= 20 km
didtance covered by her in next 3 hours = 15*3
= 45 km
So total distance moved by her = (20 + 45) km
= 65 km
average speed = (10 + 15)/2
= 25/2
= 12.5 km per hour

Hope the answeres r correct.....................