a) 8%
b) 9%
c) 10%
d) 12%
correct answer is: b) 9%
Here,
Principal =₹ 3600
Amount =₹ 4734
Time =\ 3\frac{1}{2} years or \frac{7}{2} years
We know,
S.I. =\left(amount\ -\ principle\right)
\rightarrow S.I. =₹\left(4734\;-\;3600\right)
\rightarrow S.I =₹ 1134
We also know, Rate =\frac{100\times S I}{P\times T}
\rightarrow Rate =\frac{100\times1134\times2}{3600\times7}
\therefore Rate = 9%
Ans: The percent rate is 9%.