Question

Disha cycle to her school at an average speed of 12 kilometre per hour it take her 20 minutes to reach the school if we want to reach her school in 15 minute what should be the average speed​

Answer 1

explanation:

case1:

speed = 12kmph.

time = 20 mins = 1/3 hours.

distance = speed × time = 12 × 1/3 = 4km.

case2:

distance = 4km.

time = 15 mins = 1/4 hours.

speed = distance ÷ time = 4 × 4 = 16 kmph.

Answer 2

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