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Question 11

Meenakshee cycles to her school at an average speed of 12 km/h and takes 20 minutes to reach her school. If she wants to reach her school in 12 minutes, her average speed should be
(a)203km/h
(b)16 km/h
(c)20 km/h
(d) 15 km/h

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Solution

Given, speed of cycle =12 km/h
Time taken by Meenakshee through cycle =20 min
Then, total distance cover =12×2060=4 km [ distance =time × speed]
If Meenakshee want to reach her school in 12 min, then her cycle speed should be 41260i.e. 20 km/h. (speed=distancetime)
Hence, option (c)is correct.


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