Question

    Waqar borrowed Rs. ____ on compound interest at 15% p.a.

    compounded annually. After __ years, the rate of interest changed to 20%. At the end of 4 years, he paid a total amount of Rs. _____.(I). Rs. 80,000, 2 years, Rs. 155022(II). Rs. 60,000, 3 years. Rs. 112382(III). Rs. 90,000, 1 year, Rs. 178848The data given in which among the given options will fill the blank in the same order so as to make the statement true?
    A Only (I) Correct Answer Incorrect Answer
    B Only (II) Correct Answer Incorrect Answer
    C Both (I) and (III) Correct Answer Incorrect Answer
    D Only (III) Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    From option (I) ,
    Sum = Rs. 80,000
    So, total amount = 80,000 X (1.15) 2 X (1.2) 2 = Rs. 152352 ≠ 155022
    So, (I) is not true.
    Option (II)
    Sum = Rs. 60,000
    So, total amount = 60,000 X (1.15) 3 X (1.2) 1 = Rs. 109503 ≠ 112382
    So, (II) is not true.
    Option (III)
    Sum = Rs. 90,000
    So, total amount = 90,000 X (1.15) 1 X (1.2) 3 = Rs. 178848
    So, (III) is true.

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