Question

3. Abdul, while driving to school, computes the average speed for
his trip to be 20 km h. On his return trip along the same
route, there is less traffic and the average speed is
30 km h? What is the average speed for Abdul's trip?

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Answer 1

Answer:

we know, one of the formulae for average speed

is (sum of all speeds)/2

there are 2 speeds-

20km/h and 30km/h

so, average speed is (20kmph+30kmph)/2=50kmph/2

=25km/h

so, average speed for abdul's trip is 25 km/h

Hope it helps...