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Algebra Difficulty 1.3 Junior Find the answer Canada

Mauricio goes for a walk every day for five consecutive days. On
the first day, he walks for $11$
minutes. Each day after the first, he walks for $3$ minutes longer than he walked the day
before. In minutes, what is the total time that he walks over the five
days?

Pick one

Solution

On the second day, Mauricio walks $11+3=14$ minutes. On the third day he
walks $17$ minutes. On the fourth
day, he walks $20$ minutes. On the
fifth day, he walks $23$ minutes. In
total, Mauricio walks $11+14+17+20+23=85$ minutes over the five
days.

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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.