Solution - Compound interest (basic)

75547.73

75547.73

Step-by-step explanation

Use $A = P {(1 + r / n)}^{(n t)}$ with $P = 5, 420$ , $r = 10 %$ , $n = 2$ , $t = 27$ .

Compute period rate and exponent: $\frac{r}{n} = 0.05$ , $n t = 54$ , so the growth factor is $13.9386961108$ .

Multiply principal by growth factor: $5, 420$ × $13.9386961108$ = $75547.73$ .

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Compound interest appears in savings, loans, and investments. Understanding it builds strong financial literacy.