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    Question

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

    β€˜P’ and is 56% less than monthly income of β€˜P’. Monthly expenditure of β€˜Q’ is Rs. 4100 and ratio of monthly income of β€˜P’ and β€˜Q’ is 15:23, respectively. Find monthly expenditure of β€˜P’. MT
    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€˜23x’, respectively Monthly savings of β€˜Q’ = 44% Γ— 15x = Rs. 6.6x Monthly savings of β€˜P’ = {6.6/1.25} = Rs. 5.28x Monthly expenditure of β€˜P’ = 15x – 5.28x = Rs. 9.72x Monthly expenditure of β€˜Q’ = 23x – 6.6x = Rs. 16.4x Or, 16.4x = 4100 Or, x = 4100/16.4 Or, x = 400 Monthly expenditure of β€˜P’ = 9.72 Γ— 250 = Rs. 2430

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