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A, B and C started a business by investing money in the ratio 5: 7: 9. After 4 months D joined them by investing money equal to the investment of B. Find the ratio of their profits at the end of a year.

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12 : 17: 19 : 13

15 : 17: 28 : 25

15 : 21 : 27 : 14

12 : 15 : 17 : 9

answer is B.

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Detailed Solution

Ratio $= 5 x \times 12 : 7 x \times 12 : 9 x \times 12 : 7 x \times 8$

$= 15 : 21 : 27 : 14$

$∴$ Option (b) is the correct answer.

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