Question

the compound interest on rs. 2000 for 1 year at 10% per annum when componded half yearly

Answer 1

Amount= Rs 2000
n= 1= 2 half years
r= 10= 5% per half
A= P(1+r/100)^n
A= 2000×(1+5/100)^2
A= 2000× 105/100 × 105/100
A=Rs 2205
C.I.= A-P
C.I.= Rs(2205-2000)= Rs 205
Hope it helps☺

Answer 2

amount= rs 2000 ; Rate= 10% (5 half rate) ;
Time= 1 year (2 hall year) ........

2000 (1+5upon 100)²
2000×21 upon 100 × 21 upon 100
= 4410
C.I = 4410-2000= 2410