Question

a car covers four successive 6km distance at speeds of 25km/h, 50km/h, 75km/h and 150km/h respectively its average speed over the entire distance is

Answer 1

V= distance/time Time= distance/velocity Avg speed =total distance/total time taken = 24/(6+3+2+1)1/25 =24*25/12 =2*25 =50