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Question

Find the amount which Ram will get on Rs. 4096, if he gave it for 18 months at 1212% per annum, interest being compounded half-yearly.

A: Rs. 4913

B: Rs. 4425

C: Rs. 4814
D: Rs. 4124


A
Rs.4913
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B
Rs.4425
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C
Rs.4814
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D
Rs.4124
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Solution

The correct option is A:


Rs. 4913
Here, Principal,P = Rs. 4096

Time,t =18 months =112 years

Rate =1212%=252% per annum.

Here, the interest is compounded half yearly.

For half yearly, we have

Rate (compounded half-year) =R=(252÷2)%=254%

n=112×2=3 (As interest is compounded half yearly)

Amount, A =P(1+R100)n

=4096(1+254100)3

=4096(1+25400)3

=4096(1+116)3

=4096×1716×1716×1716

=17×17×17

=4913

Hence, Amount =Rs. 4913



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