Question

p= 80000 , interest rate= 10% ,compounded annuually for 1and half years
find the amount

Answer 1

Amount = Principal(1+Rate/100)^time
           = 80000((1+10/100)^1) * ((1+5/100)^1)
           = 80000 * 11/10 * 21/20
           =92400

Answer 2

Amount = Principle × ( 1 + rate × time )
           
              First converting rate into decimal = 10/100 = 0.1

Now , 
 
              = 80000 × ( 1 + 0.1 × 1.6 )
              = 80000 × 1.16
             = 92800