Question

40. A train travels the first 15 km at a uniform speed of 30 km/h; the next 75 km at a uniform speed of
50 km/h; and the last 10 km at a uniform speed of 20 km/h: Calculate the average speed for the entire train
jpumes.​

Answer 1

Answer:

the average speed is 25/16 this is your answer please mark me as brianliest please and inbox me please

Answer 2

Average speed=Total distance/total time

Time=distance/speed

(15+75+10)/(15/30+75/50+10/20)

100/(1/2+3/2+1/2)

100/(5/2)

40

Thus,the average speed is 40km/hr