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    Question

    β€˜M’, β€˜N’ and β€˜O’, each of them invested Rs.

    3500 at the rate of 12% p.a., 30% p.a. and 45% p.a., respectively for 7 years, 4 years and 5 years, respectively. Find the sum of simple interests received by them.
    A Rs.14,275 Correct Answer Incorrect Answer
    B Rs.15,015 Correct Answer Incorrect Answer
    C Rs.11,000 Correct Answer Incorrect Answer
    D Rs.12,900 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Simple interest received by β€˜M’ = (3500 Γ— 12 Γ— 7)/100 = Rs. 2940 Simple interest received by β€˜N’ = (3500 Γ— 30 Γ— 4)/100 = Rs. 4200 Simple interest received by β€˜O’ = (3500 Γ— 45 Γ— 5)/100 = Rs. 7875 Required sum = (3500/100) Γ— {(12 Γ— 7) + (30 Γ— 4) + (45 Γ— 5)} = Rs. 15015

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