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    Question

    The simple interest on Rs. 1000 at R% per annum for 2 years

    is Rs. 160. Calculate the interest on Rs. 1400 at (R + 6)% per annum in 2 years.
    A Rs.550 Correct Answer Incorrect Answer
    B Rs.392 Correct Answer Incorrect Answer
    C Rs.720 Correct Answer Incorrect Answer
    D Rs.665 Correct Answer Incorrect Answer

    Solution

    ATQ,

    160 = 1000 × R% × 2

    R = 160 / 20 = 8

    Therefore, required interest = 1400 × (8 + 6)% × 2 = Rs. 392

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