What is the simple interest earned on R50,000 if it is invested for 12 years at 8% per annum?

The formula for calculating simple interest is:

Simple Interest = Principal x Rate x Time

Where:
Principal = R50,000
Rate = 8% per annum = 0.08
Time = 12 years

Plugging in the values:

Simple Interest = R50,000 x 0.08 x 12
Simple Interest = R50,000 x 0.96
Simple Interest = R48,000

Therefore, the simple interest earned on R50,000 if it is invested for 12 years at 8% per annum is R48,000.

Simple interest = (Principal x Rate x Time) / 100

Given,
Principal (P) = R50,000
Rate (R) = 8% per annum
Time (T) = 12 years

Simple interest = (50,000 x 8 x 12) / 100
= (600,000 x 12) / 100
= 72,000

Therefore, the simple interest earned is R72,000.