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      Question

      A and B started a retail store with initial investments

      in the ratio 6:7 and their annual profits were in the ratio 3:4. If A invested the money for 7 months, then for how many months did B invest his money?┬а
      A 10 month Correct Answer Incorrect Answer
      B 8 month Correct Answer Incorrect Answer
      C 7.5 month Correct Answer Incorrect Answer
      D 6 month Correct Answer Incorrect Answer

      Solution

      Suppose A invested Rs. 6x for 7 months and B invested 7x for y months then, тЗТ ┬а(6x ├Ч 7)/(7x ├Ч y) = 3/4 тЗТ ┬аy = (42x ├Ч 4)/(7x ├Ч 3) тЗТ ┬аy = 168x/21x тЗТ ┬аy = 8

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