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Q.

In the hare - tortoise race, the hare ran for 2 min at a speed of 7.5 km/h, slept for 56 min and again ran 2 min at a speed of 7.5 km/h. The average speed of hare in the race is   

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a

7.5 km/hr

b

12 km/hr

c

14 km/hr

d

5 km/hr

answer is C.

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Detailed Solution

Total distance travelled 2(7.5×260)km=12km

Total time =2+56+2=60min

∴Average speed =st=121=12 kmph

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