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If there are 2.54 cm in 1 inch, how long in inches is a meter stick?

User Georgette
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1 Answer

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To solve the exercise, we can use the rule of three:

Since we know that there are 100 centimeters in a meter, we have:


\begin{gathered} 2.54\operatorname{cm}\rightarrow1\text{ in} \\ 100\operatorname{cm}\rightarrow x\text{ in} \end{gathered}
\begin{gathered} x=\frac{100\operatorname{cm}\cdot1in}{2.54\operatorname{cm}} \\ x=(10in\cdot1)/(2.54) \\ x=(10in)/(2.54) \\ x=39.37in \end{gathered}

Therefore, there are 39.37 inches in a meter stick.

User Amar Pratap
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