Question

find CI on a sum of rupees 8000 for 2 years at 5% per annum compounded annually

Answer 1

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Answer 2

p=8000
r=5%
s.i for 1st year =8000×1×5/100
=400
p=principle for 2nd year =8000+400
=8400
s.i for 2nd year=8400×1×5/100
=420
c.i=s.i for 1st year +s.i for 2nd year
=400+420
=820

without other formula