27.
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What is the compound interest earned at the end of 3 years?
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I.
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Simple interest earned on that amount at the same rate and for the same period is Rs. 4500.
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II.
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The rate of interest is 10 p.c.p.a.
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III.
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Compound interest for 3 years is more than the simple interest for that period by Rs. 465.
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A.
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I and II only
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B.
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II and III only
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C.
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I and III only
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D.
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Either II or III only
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E.
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Any two of the three
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Answer: Option D
Explanation:
I. gives, S.I for 3 years = Rs. 4500.
II. gives, Rate = 10% p.a.
III. gives, (C.I.) - (S.I.) = Rs. 465.
Clearly, using I and III we get C.I. = Rs. (465 + 4500).
Thus, II is redundant.
Also, from I and II, we get sum =
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100 x 4500
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= 15000.
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10 x 3
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Now C.I. on Rs. 15000 at 10% p.a. for 3 years may be obtained.
Thus, III is redundant.
Either II or III is redundant.
