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In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by:
Answer & Solution
Correct Answer:
Option
A
$$\eqalign{
& {\text{Distance covered by B in 9 sec}} \cr
& = \left( {\frac{{100}}{{45}} \times 9} \right){\text{m}} \cr
& = 20\,{\text{m}} \cr
& \therefore {\text{A beats B by 20 metres}} \cr} $$
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