Question

39.
(a)
Th
2
A principal amount at 5% yearly interest rate after 3 yesars earned Rs. 1200
as simple interest, should the rate of interest and duration remain the same
how much will the compound interest be on the principal ?
(a) Rs. 1215 (b) Rs. 1245 (c) Rs. 1261 (d) Rs. 1272
(a)
3.
(a​

Answer 1

Answer:

(c)1261

Explanation:

Clearly, Rate = 5% p.a., Time = 3 years, S.I.= Rs. 1200. . .

So principal=RS [100*1200]/3*5=RS 8000

Amount = Rs. 8000 x [1 +5/100]^3 - = Rs. 9261.

.. C.I. = Rs. (9261 - 8000) = Rs. 1261.

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