Question

what rate gives rupees 280 as interest on a sum of percent rupees 56000 in 2 years​

Answer 1

SI=PTR/100
280=56000×2×R/100
280=560×2×R
R=280/1120
R=1/4%=0.25%

Answer 2

Answer:

4%

given

P=56000

T=2years

SI=280

R=?

AS PER THE FORMULA

$r= \frac{p \times t}{100 \times si} \\ = \frac{56000 \times 2}{100 \times 280} \\ = \frac{112000}{28000} \\ = \frac{112}{28} \\ = 4 \\ hence \: rate \: of \: interest \: is \: 4\%$