Question

The compound interest on rs x in 2 year at 10% p.a is

Answer 1

Answer:

21x/100 is the answer......

Answer 2

Answer:

21x/100

Step-by-step explanation:

P=x

T=2 years

R=10%p.a.

So,

           $CI=P(1+\frac{R}{100} )^T-P\\=x(1+\frac{10}{100} )^2-x\\=x(\frac{11}{10} )^2-x\\=\frac{121}{100} x-\frac{100}{100} x\\=21x/100$