3.2. INTEREST RATES
S = P (1 + r)
t
= 5 000
1+
0,15
12
5×12
= 10 535,91
The future value is R10 535,91.
Key in as
2ndF CA (to clear the register).
First enter the number of compounding periods.
2ndF P/Y (second key, third row) 12 ENT (sixth key, fifth row)
ON/C
+/− 5 000 PV
15
I/Y
5
2ndF ×P/Y (first key, third row) N
To check if you have entered the correct values press
RCL and the financial key that
you want to check. If the value is incorrect, enter the new value, press the financial
key and continue.
COMP FV
The answer is 10 535,91.
• Determine the time under consideration if R5 000 is invested at 15% per year, com-
pounded half yearly, and the accumulated amount is R10 000.
S = P (1 + r)
t
10 000 = 5 000
1+
0,15
2
t×2
t =4,79
The time under consideration is 4,79 years.
Key in as
2ndF CA
2ndF P/Y 2 ENT
ON/C
+/− 10 000 FV
5 000
PV
15
l/Y
25