Aptitude - Races and Games - Discussion

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"To err is human; to forgive, divine."

- Alexander Pope

13.

In a 100 m race, A can beat B by 25 m and B can beat C by 4 m. In the same race, A can beat C by:

[A].	21 m	[B].	26 m
[C].	28 m	[D].	29 m

Answer: Option B

Explanation:

A : B = 100 : 75

B : C = 100 : 96.

A : C = A x B = 100 x 100 = 100 = 100 : 72.

B C 75 96 72

A beats C by (100 - 72) m = 28 m.

Syed Tajudeen.S said: (Mon, Aug 8, 2011 10:12:21 AM)

When A runs 100m then B runs 75m and C runs 71m and A beats C by 28m. Then how come 29m? please do clear my doubts

Yuvaraj said: (Wed, Dec 14, 2011 02:40:29 PM)

@Syed, Here it states that "In a 100 m race, A can beat B by 25 m and B can beat C by 4 m." It mesns that B beat C by 4 m in 100m race. So B beat C by 3 m in 75m race. Hence A beats C in 100 m race by 28m (25+3).