Euclid 2023 Question 1, CEMC UWaterloo

All Submissions
Best Submissions

Difficulty: 4

This problem is tagged with euclid, euclid23, highschool.

(Euclid 2023, Question 1, CEMC - UWaterloo)

(a) The average of $n$, $2n$, $3n$, $4n$, $5n$ is $18$. What is the value of $n$?
(b) Suppose that $2x + y = 5$ and $x + 2y = 7$. What is the average of $x$ and $y$?
(c) The average of $t^2$, $2t$ and $3$ is $9$. If $t \lt 0$, determine the value of $t$.

Answer Submission Note(s)
Separate your answers with a single space.

Please login or sign up to submit and check if your answer is correct.

Advertisement


flag Report Content
You should report content if:
  • It may be offensive.
  • There is something wrong with it (statement or difficulty value)
  • It isn't original.
Thanks for keeping the Math Contest Repository a clean and safe environment!