A problem by Mariam Gamal

Level pending

the median age of a group of 15 students is 17 years.if the oldest student in the group is 20 years old. which of the following could be the number of 17 year old in the group

1_ 3

2_10

3_ 14

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100 Day Summer Challenge

A problem by Mariam Gamal

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Featured

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Community

100 Day Summer Challenge

A problem by Mariam Gamal

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.