Question
A invested Rs. 76,000 in a business. After few months, B
joined him Rs. 57,000. At the end of the year, the total profit was
divided between them in ratio 2 : 1. After how many months did B join?
Answer: Option C
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Suppose B joined after x months.
Then, B's money was invested for (12 - x)
(76000 x 12)/(57000 x (12-x) = 2/1
912000 = 114000(12-x)
114 (12 - x) = 912
12-x = 8
x = 4
Hence, B joined after 4 months.
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