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A and B had old ratio (8:7). C is admitted for (1/5) share and A and B sacrifice equally. What will be A's new share?

Answer and explanation

Correct answer: (13/30)

The correct answer is A, 13/30. A and B originally share profits in the ratio 8:7, so A’s old share is 8/(8+7)=8/15. C is admitted for 1/5 share. Since A and B sacrifice equally, each gives up half of C’s share: 1/5 ÷ 2 = 1/10. A’s new share is therefore 8/15 − 1/10. Using denominator 30, 8/15=16/30 and 1/10=3/30, so A’s new share = 16/30−3/30=13/30. Option A is correct. Option B, 11/30, results from an incorrect subtraction. Option C, 8/15, is A’s old share before admission, not the new share. Option D, 1/10, is only A’s sacrifice, not A’s final share. Exam cue: first convert the old ratio into a fraction, then subtract the individual sacrifice.

Related tags

Equal SacrificeNew ShareNumerical

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