A trader bought 100 tubers at 5 for N350.00. She sold them in sets of
MATHEMATICS
WAEC 2008
A trader bought 100 tubers at 5 for N350.00. She sold them in sets of 4 for N290.00. Find her gain percent.
- A. 3.6%
- B. 3.5%
- C. 3.4%
- D. 2.55%
Correct Answer: A. 3.6%
Explanation
Cost price, c.p = \(\frac{100}{5}\) x N350 = N7000
Selling price, s.p = \(\frac{100}{5}\) x N290 = N7250
%Gain = \(\frac{S.p - C.p}{C.p}\) x 100%
= \(\frac{7250 - 7000}{7000}\) x 100% = \(\frac{250 \times 100}{7000}\)
= 3.6% (approx.)
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