Question

10. A sum amounts to * 4,410 after two years at 5% compound interest per annu
is the principal ?
(1) 3,000
(2) 34,100
4,200
(3) 4,000​

Answer 1

We know that Compound Interest = p(1+r/100)^n-1

But here the Amount is given so we'll use A=p(1+r/100)^n

Now by formula,

4410 = p(1+5/100)^2

4410 = p(1+0.05)^2

4410 = p(1.05)^2

4410 = p(1.1025)

4410/1.1025 = p

4000 = p

So the principle is Rs. 4000 answer.

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