Question

4. At what rate per cent per annum will Rs 800
amount to Rs 1000 in 4 years ?​

Answer 1

Answer:

12.5%

Step-by-step explanation:

P = Rs. 800, A = Rs. 1000, n = 2 years

Simple interest = A - P

= 1000 - 800 = Rs. 200

Pnr/100 = 200

800 × 2 r/100 = 200

r/100 = 200/1600

r/100 = 1/8

r = 100/8 = 12.5%