Question

if rs 650 amount to rs 685 in 2 years find the rate of interest p.a​

Answer 1

Answer:

Hey Mate!!

Amount = S.I. + Principal

→ 685 = S.I. + 650

→ S.I = 685 - 650

→ S.I. = ₹35

$S.I. = \frac{P \times R \times T}{100}\\\\=> 35 = \frac{650 \times R \times 2}{100}\\\\=> 35 = \frac{1300R}{100} \\\\=> 35 = 13R\\\\=> R = 35 \div 13\\\\=> R = {\bold{2.67 \%}}$