What is the rate of interest per annum for simple interest at which Rs. 880 amounts to Rs. 913 in $1 \frac{1}{2}$ years?

$2 \frac{2}{3} %$ $2 \frac{1}{4} %$ $2 \frac{1}{2} %$ $2 \frac{1}{3} %$

$2 \frac{1}{2} %$

Principal (P)=880 Amount (A)=913 Time(T)=\(\frac{3}{2}\) Years Interest (I) =A-P=33 I=\(\frac{P×R×T}{100}\) 33=\(\frac{880×R×3}{100×2}\) R=2.5% OR 2\(\frac{1}{2}\)%