Question

calculate what R 10 000 will amount to if it is invested at 10% per annum compound interest for 3 years

Answer 1

AMOUNT = PRINCIPAL (1+R/100)∧n  
AMOUNT = 10000 (1+10/100)³  
AMOUNT = 10000 (110/100)³  
AMOUNT = Rs. 13310  

Answer 2

A=  P  x  ( 1 + R/100) n               (n IS THE POWER)
A= 10000  x  (1 + 10/100) 3        ( 3 IS THE POWER)
A = 10000  x  110  x  110  x  110
                       100 x 100 x 100
A=  10000 x 11 x 11 x 11
                 1000
A=  13310

SO THE AMOUNT WILL B RS. 13310
:)