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    Question

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

    β€˜P’ and is 55% less than monthly income of β€˜P’. Monthly expenditure of β€˜Q’ is Rs. 6100 and ratio of monthly income of β€˜P’ and β€˜Q’ is 15:22, 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€˜22x’, respectively Monthly savings of β€˜Q’ = 45% Γ— 15x = Rs. 6.75x Monthly savings of β€˜P’ = {6.75/1.25} = Rs. 5.4x Monthly expenditure of β€˜P’ = 15x – 5.4x = Rs. 9.6x Monthly expenditure of β€˜Q’ = 22x – 6.75x = Rs. 15.25x Or, 15.25x = 6100 Or, x = 6100/15.25 Or, x = 400 Monthly expenditure of β€˜P’ = 9.6 Γ— 400 = Rs. 3840

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