How Many Minutes?

Algebra Level 1

I ran for 5 laps with a total of exactly 7 minutes and 30 seconds; each lap equals 400 meters. My father wanted to know how fast I ran on average in one lap. So my mother calculated \[7.5 \div 5 = 1.5, \] and she concluded that I ran for 1 minute and 50 seconds in each lap. Is she correct?

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100 Day Summer Challenge

How Many Minutes?

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Courses

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Community

100 Day Summer Challenge

How Many Minutes?

Just as a side note, this really happened!

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Master advanced concepts through explanations,
examples, and problems from the community.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Master advanced concepts through explanations,
examples, and problems from the community.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.