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    Question

    'A' borrows Rs. 600 at the rate of 15% p.a. simple

    interest, and 'B' borrows Rs. 800 at the rate of 10% p.a. simple interest. In how many years will their amounts be equal? 
    A 22 yrs Correct Answer Incorrect Answer
    B 12 yrs Correct Answer Incorrect Answer
    C 15 yrs Correct Answer Incorrect Answer
    D 20 yrs Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let, the time be‘x’ years According to the question 600 + 600 × 15% × x = 800 + 800 × 10% × x 600 + 90x = 800 + 80x 10x = 200 x = 20 years

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