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In how many years will the simple interest on a sum of money be equal to the principle at rate of $$12\frac{2}{4}\% $$ per annum?
Answer & Solution
Correct Answer:
Option
C
$$\eqalign{
& 1 = 1 \times \frac{{50}}{{400}} \times t \cr
& t = 8{\text{ years}} \cr} $$
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