CBSE Class 8 Answered
Siris borrowed a sum of163840 at 12.5%pa compound interest anually.on the same dayhe lent out the same amount to sahej at the same rate of interest.But compounded half yearly? Find his gain
Asked by raushanpathak96 | 06 Dec, 2018, 10:35: PM
Expert Answer
In the given question, period of lending the money is not given.
Hence this question is worked out for 2 year.
If the user knows the exact period then he/she can workout exactly using the same procedure.
We know that the formula for amount, if interest is annualy compounded is given by
, where A is amount, P is principle, r is annual rate of interest and n is number of years.
instead of annualy compounded, if interest is compounded after m months,
then the amount will be calculated using the formula given below
, where k is number of times interest is compounded in n years
and k is obtained from the relation k = (n/m)×12
Let us workout this question for two years
Amount, if interest is compounded annualy,
Amount, if interest is compounded every 6 months,
Hence for 2 years, his gain is Rs. 1442.50
Answered by Thiyagarajan K | 07 Dec, 2018, 11:48: PM
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