Question

Find the amount compound interest 2000 at 10 p.a at 2.5 years ​

Answer 1

Given :-

• Principal = Rs.2000
• Rate = 10%
• Time = 2.5 years.

Formula used :-

Assume Time whole As = W .

And, Fraction Time as = F .

Than,

Formula for Amount will be :-

☛ Amount = P [ 1 + (R/100) ]^W * [ 1 + {(F*R)/100} ]

Solution :-

→ P = 2000

→ R = 10%

→ W = 2 years

→ F = 0.5

Putting Values we get :-

→ A = 2000 [ 1 + (10/100) ]² * [ 1 + (0.5*10)/100 ]

→ A = 2000 * (11/10)² * (21/20)

→ A = ( 2000 * 121 * 21 ) / (2000)

→ A = Rs.2541 (Ans).

Answer 2

a=p{1+(r/100)}^t

=2000{1+1/10}^2{1+(1/20)}

=2000*121/100*21/20

=121*21

=2541