Player A can run 40 m while player B can run 50 m in the same time. In a race of 800 m, B will beat A by a distance of
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 160 m
In the same time the distances are in the ratio of the speeds, A : B = 40 : 50 = 4 : 5.
When B finishes the 800 m race, A has covered
\( \displaystyle 800\times\frac{4}{5}=640\ \text{m} \)
So B beats A by 800 − 640 = 160 m.