Disha cycles to her school at an average speed of 12 km per hour it takes 20 minutes to reach the school if she wants to recharge school in in 15 minutes what should be average speed
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1
Answer:16 km/hr
Step-by-step explanation:
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Answer:
16 Km/h
Step-by-step explanation:
average speed= 12 km/h
time taken= 20 min = 20/60 h = 1/3 h
average speed= total distance taken/total time taken
distance = av. speed × time
= 12 * 1/3
= 4 km
av. speed if
time= 15 min = 15/60h = 1/4 h
av. speed=total distance taken/total time taken
= 4 / (1/4)
= 16 km/h
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