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    Question

    'U' spends 25% of his monthly income on food, 30% on

    rent, and 15% of the remaining amount on insurance. He saves the rest in a savings plan that gives simple interest at a rate of 11% per annum. Find the amount 'U' will get at the end of the year if his spending on insurance is Rs. 1000 per month.
    A Rs.6064 Correct Answer Incorrect Answer
    B Rs.6647 Correct Answer Incorrect Answer
    C Rs.6290 Correct Answer Incorrect Answer
    D Rs.7508 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let monthly income = Rs. 100c Spending on food = 100c × 0.25 = Rs. 25c Spending on rent = 100c × 0.3 = Rs. 30c Spending on insurance = (100c – 25c – 30c) × 0.15 = Rs. 6.75c Savings = 100c – 25c – 30c – 6.75c = Rs. 38.25c Now, 6.75c = 1000 Or, 38.25c = 5666.67 Total interest paid by the savings plan: = P × r × t = 5666.67 × 11 × 1/100 = Rs. 623.33 Amount = 5666.67 + 623.33 = Rs.6290

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