A man sells two articles, each for $Rs.\,640.$ He earns $20 \%$ profit on the first, and $40 \%$ profit on the second. Find his overall percent profit.
A man sells two articles, each for $Rs.\,640.$ He earns $20 \%$ profit on the first, and $40 \%$ profit on the second. Find his overall percent profit.
- A
$29 \frac{1}{2}$
- B
$28 \frac{1}{2}$
- C
$29 \frac{3}{13}$
- D
None of these
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