Question

rupees 10800 for 2×1÷2years at 10℅rate per annum compounded annually

Answer 1

11880 is the correct answer and the ci is 1080

Answer 2

we have to find compound interest or simple
interest

if SI then it will be
p*r*t/100
=10800*10*4/100
=4220

if CI then
p(1+r/100)^t
10800(1+10/100)^4
10800*11/10*11/10*11/10*11/10