Mathematics
JAMB 1986
Udoh deposited N150.00 in the bank. At the end of 5 years the simple interest on the principal was N55.00. At what rate per annum was the interest paid?
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A.
11%
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B.
7\(\frac{1}{3}\)%
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C.
5
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D.
3\(\frac{1}{2}\)%
Correct Answer: Option B
Explanation
S.I = \(\frac{PTR}{100}\)
R = \(\frac{100}{PT}\)
\(\frac{100 \times 50}{150 \times 6}\) = \(\frac{22}{3}\)
= 7\(\frac{1}{3}\)%
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