Find $70 %$ of $110 c m$

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Solution

Calculating the percentage
$70 %$ of $110 c m$ $= 70 % \times 110 c m$ $∵$ Replacing of by $\times$
$= \frac{70}{100} \times 110 c m$ $∵$ Divide by $100$ because $%$ means out of $100$
$= \frac{7700}{100} c m$
$= 77 c m$ $∵$ On dividing $7700$ by $100$
Hence, $70 %$ of $110 c m$ $= 77 c m$

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