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Q.

Vasudevan invested Rs.60000 at an interest rate of 12% per annum compounded half yearly. What amount would he get after 11 year?

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a

Rs.67416

b

Rs.78416

c

Rs.67786

d

Rs.45416 

answer is A.

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Detailed Solution

Let P be the principal amount, R be the rate of interest and n be the time period.
Interest rate is given per annum. But the interest is compounded half yearly.
Therefore the effective interest for half year will be half of that for the full year.
Question Image
Also the time period is two times since there are two half years in a year.
So we have, n=2
Principal is given as Rs.60000.
Question Image
The amount to be paid if the interest is calculated annually is given by,
Question Image
Substituting the above values we get,
Question Image
Question Image
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Therefore we get,
Question Image
So the amount he would get after one year is Question Image
 The ans is option 1.
 
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