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    Question

    Meera spends 30% of her income on house rent and then

    uses 25% of the remaining money on groceries. From what is left, she deposits 40% in her bank. The rest she invests in mutual funds and bonds in the ratio 7:3. If the difference between the amounts invested in mutual funds and bonds is Rs. 12,600, find the amount deposited in the bank by Meera.
    A Rs.21,700 Correct Answer Incorrect Answer
    B Rs.21,000 Correct Answer Incorrect Answer
    C Rs.31,000 Correct Answer Incorrect Answer
    D Rs.27,120 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let Meera’s income be Rs. ‘100x’ Rent = 100x × 0.30 = Rs. ‘30x’ Remaining = 100x − 30x = Rs. ‘70x’ Groceries = 70x × 0.25 = Rs. ‘17.5x’ Remaining = 70x − 17.5x = Rs. ‘52.5x’ Bank deposit = 52.5x × 0.40 = Rs. ‘21x’ Remaining = 52.5x − 21x = Rs. ‘31.5x’ Investment split = 7 : 3 (total parts = 10) Mutual funds = 31.5x × (7/10) = Rs. ‘22.05x’ Bonds = 31.5x × (3/10) = Rs. ‘9.45x’ ATQ; Difference = 22.05x − 9.45x = 12.6x = 12600 So, ‘x’ = 12600 / 12.6 = 1000 Hence, bank deposit = Rs. ‘21x’ = 21 × 1000 = Rs. 21,000

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