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      Question

      The respective ratio of monthly income of A to monthly

      income of B is 13:14, and Aโ€™s saving is (100/21)% more than Bโ€™s saving. Find the expenditure of A, if the sum of monthly income of A and B is Rs. 54000, and expenditure of B is Rs. 7000.
      A Rs. 4500 Correct Answer Incorrect Answer
      B Rs. 4900 Correct Answer Incorrect Answer
      C Rs. 4000 Correct Answer Incorrect Answer
      D Rs. 4800 Correct Answer Incorrect Answer
      E Rs. 5000 Correct Answer Incorrect Answer

      Solution

      Let monthly income of A and B be 13x and 14x, respectively. Then, 13x + 14x = 54000 27x = 54000, x = 2000 Aโ€™s monthly income = 13x = Rs. 26000 Bโ€™s monthly income = 14x = Rs. 28000 Given, expenditure of B = Rs. 7000 So, Bโ€™s saving = 28000 โ€“ 7000 = Rs. 21000 Then, Aโ€™s saving = 21000 + (1/21) ร— 21000 = 21000 + 1000 = Rs. 22000 Aโ€™s expenditure = 26000 โ€“ 22000 = Rs. 4000

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