Question

A car moves at a speed of 60km/hr for 50 km and 80 km/hr for the next 50km what is average speed (inkm/hr)of for the journey of 100km?​

Answer 1

Answer:

35.71 km/hr

Explanation:

time taken for first 50 km= distance/speed

                                         = 60/50= 1.2 hr

time taken for second 50 km= distance/speed

                                                = 80/50= 1.6 hr

average speed= total distance/total time

                        = 100/2.8= 35.71 km/hr