Question

if rs 250 amount to rs 285 in 2 year, find the rate percent per annum

Answer 1

Here
Amount (A) = 285
principal (P)= 250

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$simple \: interest \: = amount - principal \\ si = 285 - 250 \\ si \: = 25 \\ now \\ \\ si = \frac{p \times r \times t}{100} \\ 25 = \frac{250 \times r \times 2}{100} \\ \\ r = \frac{25 \times 100}{250 \times 2 } \\ r = 5\%$