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Question

A started a business with an investment of Rs.30000. After few months B joined him with an investment of Rs.42000. If at the end of the year, they share the profit in the ratio of (A:

B 7:10, then find after how much time B joined the business?

A 5 months

B 3 months

C 6 months

D 8 months

E 4 months

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