A discrete mathematics problem by Brilliant Member

Discrete Mathematics Level 3

A box contains 100 tickets numbered 1, 2, …, 100. Two tickets are chosen at random. It is given that the greater number on the two chosen tickets is not more than 10. The probability that the smaller number is 5 is \(\text{__________} . \)

1/7 13/83 1/13 328/993 1/9 427/13214 1/5 19/783

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.