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WAEC Mathematics 2024 Paper

Question : 7

Total: 50

\text{ 1,250.00 will amount to } \\

2,031.25 at 12.5% per annum simple interest.

Solution:

Simple interest = Amount - Principal = \ $(2,031.25 - 1,250) = \\$ 781.25

S.I = $\frac{\;\text{PRT}\;}{100}$

781.25 = $\frac{\;1250 \times 12.5 \times T}{100}$

T = $\frac{\;781.25 \times 100}{1250 \times 12.5}$ = 5 years.

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