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In a km race if A gives B a start of 100 m, A wins by 20 sec and if A gives B a start of 50 sec, B wins by 30 m....

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A and B run a km race. If A gives B a start of 100 m, A wins by 20 sec and if A gives B a start of 50 sec, B wins by 30 m. Then what is the time taken by A to run a km?

posted Jun 15, 2017 by anonymous

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