A and B started a business with initial investments in the ratio 5 : 7. If after one year their profits were in the ratio 1 : 2 and the period for A’s investment was 7 months, B invested the money for
Answer : Option C
Explanation : Let B invested money for ???? months.
∴ 5×7∶7×????=1∶2
∴ 35∶7????=1∶2
7????=35×2
????=10 months
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