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CEMC Gauss (Grade 8), 2025

Algebra Difficulty 1.4 Junior Find the answer Canada

Leticia can walk $1.5 \text{ km}$ in $20 \text{ minutes}$ .
Walking at this same rate, how far does Leticia walk in $4 \text{ hours}$ ?

Pick one

Solution

There are $60 \text{ minutes}$
in one hour.

Since $3\times20\text{ minutes}=60 \text{ minutes}$ , and $3\times1.5 \text{ km}= 4.5 \text{ km}$ , then Leticia can walk $4.5 \text{ km}$ in one hour.

Walking at this same rate, Leticia can walk $4\times4.5\text{ km}=18 \text{ km}$ in
$4 \text{ hours}$ .

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