In 1 km race, A beats B by 18 m or 9 s. Find the A' s time over the course.

Question

Accepted Answer

Clearly, B covers 18 m in 9 s. ∴ B's time over the course = 9/18 x 1000 = 500 s ∴ A' s time over the course = (500 - 9) = 491 s

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