Final answer:
The pensioner's annual income from an investment of RM20,000 at an 8% interest rate will be RM1,600.
Step-by-step explanation:
The pensioner invested her savings of RM20,000 at an interest rate of 8%. To calculate the annual income she will receive, you multiply the principal amount by the interest rate. The formula for this calculation is:
Annual Income = Principal × Interest Rate
In this case:
Annual Income = RM20,000 × 0.08
Annual Income = RM1,600
Therefore, the pensioner will receive an annual income of RM1,600.