Aptitude Question ID: 105872

In what time will 72 Rs. become 81 Rs. at $latex 6\frac{1}{4}\%&s=1$ per annum simple interest?
[A]2 years
[B]2.5 years8
[C]3 years
[D]3.5 years

2 years
Interest = (81 – 72) = 9 Rs.
Let the time be t years.
Then, $latex 9 = \frac{72\times 25\times t}{4\times 100}&s=1$
$latex => t = \frac{9\times 400}{72\times 25} = 2\ years&s=1$
Hence option [A] is correct answer.


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