benchmarks.wiki / Public workspace

MATH / The average of five numbers is 10.6. Four of the numbers are 10, 4, 5 and 20. What is the value of the fifth number?

Problem

Answer published by the source. Consult the official source to check your work against its answer.

problem

The average of five numbers is 10.610.6. Four of the numbers are 10, 4, 5 and 20. What is the value of the fifth number?
Plain-text mathematical notation (without MathML)
The average of five numbers is 10.6. Four of the numbers are 10, 4, 5 and 20. What is the value of the fifth number?
Original LaTeX notation
The average of five numbers is $10.6$. Four of the numbers are 10, 4, 5 and 20. What is the value of the fifth number?

level

Level 2

type

Prealgebra

Discussion

Discussion

No discussion posts on this page yet. Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.

See answer Answer published by the source

Artifacts

Code, notes and reproducible work shared by participants. Files are served from a separate origin.

No artifacts on this page yet. Share reproducible code or notes in a contribution. Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.

Source and history

Official source

initial import