One third of a certain journey is covered at the rate of 25kmhours, one fourth at the rate of 30 km

Описание к видео One third of a certain journey is covered at the rate of 25kmhours, one fourth at the rate of 30 km

#quantitativeaptitudeshortcuts
#Time Speed And Distance - Premier Math
#problems on train
One third of a certain journey is covered at the rate of 25kmhours, one -fourth at the rate of 30 kmhour and the rest at 50kmhours. The average speed for the whole journey is
a. 35kmhour b. 33 13 kmhour c. 30kmhour d. 37 112 kmhour

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