In what time will 1860 Rs. amount to 2641.20 at simple interest 12% per annum ?
In what time will 1860 Rs. amount to 2641.20 at simple interest 12% per annum ?
[A]3 years
[B]3.5 years
[C]4 years
[D]4.5 years
3.5 years
SI = 2641.20 – 1860 = 781.2 Rs.
$latex Time = \frac{SI\times 100}{Princ.\times Rate}&s=1$
$latex = \frac{781.2\times 100}{1860\times 12} = 3.5 = 3\frac{1}{2}\ years&s=1$
Hence option [B] is correct answer.