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Question

In a 300 m race  A beats B by  22.5 m or 6 seconds . B's time over the course is :


Options:
A .  86 sec.
B .  80 sec.
C .  76 sec.
D .  None of these
Answer: Option B

B runs `45/2` m in 6 sec.

`:.`   B  covers  300 m in `(6 xx 2/45 xx 300)`sec. = 80 sec.



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