A student while going to school in a school bus,observes the average s

1.	A student while going to school in a school bus,observes the average speed of the bus to be20 km/h. On his return trip along the same way,the average speed is 30 km/h. What is the averagespeed of the bus in the entire journey?
Answer» EXPLANATION: AVERAGE SPEED =2xy/x+y =2×30×20/20+30 =2×30×20/50 =2×3×4=24

A student while going to school in a school bus,observes the average speed of the bus to be20 km/h. On his return trip along the same way,the average speed is 30 km/h. What is the averagespeed of the bus in the entire journey?

Answer»

EXPLANATION:

AVERAGE SPEED =2xy/x+y

=2×30×20/20+30

=2×30×20/50

=2×3×4=24

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A student while going to school in a school bus,observes the average speed of the bus to be20 km/h. On his return trip along the same way,the average speed is 30 km/h. What is the averagespeed of the bus in the entire journey?​

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A student while going to school in a school bus,observes the average speed of the bus to be20 km/h. On his return trip along the same way,the average speed is 30 km/h. What is the averagespeed of the bus in the entire journey?