Work out:
\(50\%\) of \($80\).
Type the number only (no $ sign).
Work out:
\(25\%\) of \(64\text{ m}\).
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Work out:
\(10\%\) of \(130\text{ kg}\).
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Work out:
\(75\%\) of \(48\text{ cm}\).
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Work out:
\(20\%\) of \(75\text{ litres}\).
Type the number only.