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      Question

      A spent 36% and 25% of his monthly salary on food and

      rent, respectively. Of the remaining amount, he gave 25% and 40% to his mother and brother, respectively. Find the amount spent by him on food, if the difference between the amount received by his brother and the amount spent on rent is Rs. 3290.
      A Rs. 12600 Correct Answer Incorrect Answer
      B Rs. 12000 Correct Answer Incorrect Answer
      C Rs. 13600 Correct Answer Incorrect Answer
      D Rs. 12800 Correct Answer Incorrect Answer
      E Rs. 12900 Correct Answer Incorrect Answer

      Solution

      Let the monthly salary of A be Rs. ‘x’ Amount spent on food = Rs. 0.36x Amount spent on rent = Rs. 0.25x Amount received by brother = (x - 0.36x - 0.25x) x 0.40 = 0.156x So according to question: 0.25x - 0.156x = 3290 0.094x = 3290 x = 35000 So, the amount spent on food = 0.36 x 35000 = Rs. 12600

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