Question

Find the rate of interest for the following

T= 3 years, SI= ₹75, P= ₹2500

Answer 1

Answer:

rate = 75 × 100/3×2500

= 7500/3×2500

= 75 / 3×25

= 75 / 75

= 1 percent per year

Answer 2

$SI = \frac{PTR}{100} \\ 75 = \frac{2500 \times 3 \times r}{100} \\ 7500 = 7500 \times r \\ \frac{7500}{7500} = r \\ 1\% = r$