Question

find the amount and the compound intrest on rupees 8000at 5%per annum for 2 years compounded annually​

Answer 1

CI = 8ooo (105/1oo) 2-8000

= 8820-8000 = Rs 820

Answer 2

Answer:

amount = 8820

Compound Interest = 820

Step-by-step explanation:

amount = p ( 1 + r/100) ^n

             = 8000 ( 1 + 5/100) ^2

             = 8000 ( 100 + 5 / 100) ^2

             = 8000 (105/100) ^2

             = 8000 (21/20) ^2

             = 8000 * 21/20 * 21/20

             = 20 * 21 * 21

             = 8820

Compound Interest = a - p

                                 = 8820 - 8000 = 820