Answer:
The money must have been invested for 6 years
Explanation:
To calculate the number of years for which the money had been invested, we simply make use of the simple interest formula
Mathematically;
I = PRT/100
according to the question, I is the interest earned= $1275, P is the amount invested = $4,250, R is the interest rate = 5% while T is the time we want to calculate
We can rewrite the simple interest formula to mean;
T = 100I/PR
T = (100 * 1275)/((4250 * 5) = 127500/21,250 = 6 years
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