Answer:
20%
Explanation:
Given : Over the course of a day you checked 250 total mousetraps and determined that 50 of them were perfectly made.
To Find: what percentage of the mouse traps you check was perfectly made?
Solution:
Total no. of mousetraps =250
Out of 250, 50 were perfectly made.
So, to find percentage of the mouse traps you check was perfectly made:



Hence 20% of the mouse traps you check was perfectly made