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Algebra Difficulty 1.3 Junior Find the answer Canada

Olivia cuts a $42$ cm length
of string into $2$ cm pieces. Jeff
cuts a $42$ cm length of string into
$3$ cm pieces. How many more pieces
of string does Olivia have than Jeff?

Pick one

Solution

Since $\$\frac{42\text{ cm}}{2\text{}}$
cm}}=21$, then Olivia cuts her string into 21 pieces.

Since $\$\frac{42\text{ cm}}{3\text{}}$
cm}}=14$, then Jeff cuts his string into 14 pieces.

Therefore, Olivia has $21-14=7$ more
pieces of string than Jeff.

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.