Practicing Success
The compound interest on ₹18,000 at 7% per annum, compounded annually, is ₹1,260. What is the period of time? |
1 year 2 years 3 years 4 years |
1 year |
Formulas used here is :- Amount = Principal + Interest Amount = P$(1 \;+\; \frac{R}{100})^t$ ( 18000 + 1260 ) = 18000 [ 1 + \(\frac{7}{100}\) ]t \(\frac{19260}{18000}\) = [ \(\frac{107}{100}\) ]t \(\frac{107}{100}\) = [ \(\frac{107}{100}\) ]t So, t = 1 year
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