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    Question

    Monthly savings of β€˜Q’ is 25% more than that of

    β€˜P’ and is 44% less than monthly income of β€˜P’. Monthly expenditure of β€˜Q’ is Rs. 5150 and ratio of monthly income of β€˜P’ and β€˜Q’ is 15:29, respectively. Find monthly expenditure of β€˜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
    E Rs. 2800 Correct Answer Incorrect Answer

    Solution

    Let monthly income of β€˜P’ and β€˜Q’ be Rs. β€˜15x’ and Rs. β€˜29x’, respectively Monthly savings of β€˜Q’ = 56% Γ— 15x = Rs. 8.4x Monthly savings of β€˜P’ = {8.4/1.25} = Rs. 6.72x Monthly expenditure of β€˜P’ = 15x – 6.72x = Rs. 8.28x Monthly expenditure of β€˜Q’ = 29x – 8.4x = Rs. 20.6x Or, 20.6x = 5150 Or, x = 5150/20.6 Or, x = 250 Monthly expenditure of β€˜P’ = 8.28 Γ— 250 = Rs. 2070

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