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    Question

    Monthly savings of ‘Q’ is 20% more than that of

    ‘P’ and is 54% less than monthly income of ‘P’. Monthly expenditure of ‘Q’ is Rs. 5730 and ratio of monthly income of ‘P’ and ‘Q’ is 15:26, respectively. Find monthly expenditure of ‘P’.
    A Rs. 3840 Correct Answer Incorrect Answer
    B Rs. 2430 Correct Answer Incorrect Answer
    C Rs. 2070 Correct Answer Incorrect Answer
    D Rs. 2775 Correct Answer Incorrect Answer

    Solution

    Let monthly income of ‘P’ and ‘Q’ be Rs. ‘15x’ and Rs. ‘26x’, respectively Monthly savings of ‘Q’ = 46% × 15x = Rs. 6.9x Monthly savings of ‘P’ = {6.9/1.2} = Rs. 5.75x Monthly expenditure of ‘P’ = 15x – 5.75x = Rs. 9.25x Monthly expenditure of ‘Q’ = 26x – 6.9x = Rs. 19.1x Or, 19.1x = 5730 Or, x = 5730/19.1 Or, x = 300 Monthly expenditure of ‘P’ = 9.25 × 300 = Rs. 2775

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