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      Question

      Monthly income of A is Rs. 9000 and he saves 30% of his

      monthly income. If monthly expenditure of A is decreased by 35% while his monthly savings is increased by 35% then find the increase or decrease in his monthly income.
      A 18.5% increase Correct Answer Incorrect Answer
      B 15.4% decrease Correct Answer Incorrect Answer
      C 16.5% increase Correct Answer Incorrect Answer
      D 14% decrease Correct Answer Incorrect Answer

      Solution

      Monthly savings and expenditure of A initially is Rs. 2700 and Rs. 6300, respectively. Monthly expenditure of A now = 0.65 ร— 6300 = Rs. 4095 Monthly savings of A now = 1.35 ร— 2700 = Rs. 3645 Monthly income of A now = 4095 + 3645= Rs. 7740 Desired percentage decrease = [(9000 โ€“ 7740)/9000] ร— 100 = 14%

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