In a one-kilometre race, A beats B by 15 seconds and B beats C by 15 seconds. If C is 100 metres away from the finishing mark, when B has reached it, find the speed of A.

In a one-kilometre race, A beats B by 15 seconds and B beats C by 15 s

1.	In a one-kilometre race, A beats B by 15 seconds and B beats C by 15 seconds. If C is 100 metres away from the finishing mark, when B has reached it, find the speed of A.
A.	9.5 m/sec.
B.	9 m/sec.
C.	8 m/sec.
D.	8.3 m/sec
Answer» E.

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In a one-kilometre race, A beats B by 15 seconds and B beats C by 15 seconds. If C is 100 metres away from the finishing mark, when B has reached it, find the speed of A.

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