Question

find the amount and the compound interest on rupees 8000 at 5% per annum for 2 years

Answer 1

ca=p (1+r/100)^n
= 8000(1+5/100)^2
=8000(1.05)^2
=8000×1.1025
= 8820
ci=ca-p
=8820-8000
=820
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Answer 2

5 % interest every year so in two year 10 % and then 5 % of the 5 % interest which build up in the first year. Which makes the total interest 10.25 % of the principle.

10.25 % of 8000 = 820. ( interest)

Amount = 8000+820 = 8820 answer