You have the numbers 1-25 written on slips of paper. if you choose one slip at random, what is the probability that you will select a number that divisible by 4

Since there are 25 numbers there is 6/25 chances to pull a number divisible by 4 if you want a percent you divide the numerator 6 by the denominator 25 which is 0.24 then you move the decimal over to the right twice and you get 24%

Set up a system of equations