The ratio of investments of two partners A and B is 7:5 and the ratio of their profits is 7:10. If A invested the money for 5 months, find for how much time did B invest the money ?
A) 11 months B) 9 months C) 7 months D) 10 months
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D) 10 months
Explanation:
7x5: 5xk = 7:10
k = 10 months
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