Question : A invests Rs. 64,000 in a business. After a few months, B joined him with Rs. 48,000. At the end of the year, the total profit was divided between them in the ratio 2 : 1. After how many months did B join?
Option 1: 8
Option 2: 4
Option 3: 6
Option 4: 7
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Correct Answer: 4
Solution :
Let the number of months after which B joined as
Therefore, A's investment was for 12 months and B's investment was for
The ratio of A's investment to B's investment is equal to the ratio of their profits.
Hence, the correct answer is 4.
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