Simple interest is an interest added on an amount of money. The yearly interest rate is 1.05%
Simple interest is an interest added on an amount of money. The formula for calculating amount is given as:
Amount. = Principal + Interest
8000 = 1280 + PRT
Substitute
8000 - 1280 = 1280(R)(5)
6720 = 6400R
R = 1.05
Hence the yearly interest rate is 1.05%
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