(2) Answers
[latex]if\ 50\%\ of\ 162\ is\ 81\ so\ 49\%\ of\ 162\ is\ about\ 79-80[/latex]
[latex]49\%\approx50\%\\50\%=\frac{1}{2}\\\frac{1}{2}\cdot162=81\\49\%<50\%\\The\ answer\ is:\ Serched\ number\ is\ about\ 80.[/latex]
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