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    Question

    A man deposited 40% of his salary to a bank which offers

    compound interest at the rate of 10% p.a. If the interest earned by him from the bank after 2 years is Rs. 3990, find the monthly expenditure of the man which is 55% of his monthly salary. 
    A Rs. 38080 Correct Answer Incorrect Answer
    B Rs. 44880 Correct Answer Incorrect Answer
    C Rs. 47700 Correct Answer Incorrect Answer
    D Rs. 26125 Correct Answer Incorrect Answer

    Solution

    Let the amount of money deposited in the bank be Rs. ‘x’. So, x × [(1.1)2 – 1] = 3990 0.21x = 3990, x = 19000 So, monthly income of man = 19000/0.4 = Rs. 47500 Required monthly expenditure of man = 55% of 47500 = Rs. 26125

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