Question

A train covers one-third of total distance with speed of 10 km/h, the second one-third distance
with speed of 20 km/h and last one-third of the distance with speed of 60 km/h. What is the
average speed of the train ?
Im/h in first second with 40 km/h in next niyo seconds and with​

Answer 1

Answer:

given data

train covers one third distance ( speed) = 10km/ h

the second one third distance ( speed) = 20km/ h

last one third distance ( speed ) = 60 km/h

so ,

Explanation:

( 60+20+10) km/h = 90 km/h

90/60*40= 60 km/h