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Question

In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by:

Options:
A .  20 m
B .  25 m
C .  22.5 m
D .  9 m
Answer: Option A

Distance covered by B in 9 sec. = \(\left(\frac{100}{45}\times9\right)m=20m\)


So, A beats B by 20 metres.


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