[" 14.A man travels "600km" by train at "80kmph,800km" by ship at "40kmph,500km" by "],[" aeroplane at "400kmph" and "100km" by car at "50kmph." The average speed for the entire "],[" distance is "],[[" (a) "60kmph," (biles "5," ."]]

A man travels 600 km by train at 80 km/hr, 800 km by ship at 40 km/hr, 500 km by aeroplane at 400 km/hr and 100 km by car at 50 km/hr. What is the average speed for the entire distance? a. 60 k m//h r b. 62 k m//h r c. 60 5/(123) k m//h r d. 6 5/(123)k m//h r

A person covers half his journey by train at 60 kmph, the remainder half by bus at 30 kmph and the rest by cycle at 10 kmph. Find his average speed during the entire journey.

A car travels the first third of a distance with a speed of 10 kmph, the second third at 20 kmph and the last third at 60 kmph. What is its mean speed over the entire distance?