Neha cycles to her school at the average speed of 12km/hr. It takes her 20min to reach school. If she wants to reach school in 15 min, what should be her average speed?
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Hey dude here is your answer...
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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.
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