Answer:
There is a 0.36% Chance of 1 or fewer in every 24 matches being flawed.
Step-by-step explanation:
Firstly we need to know what 1/10 of 5 is. It is 0.5.
You then need to multiply 24 by 1.5 to get 36. We then need to divide that by 100 to get a percentage and we end up with 0.36%
Here is an explanation of how to get percentages: https://www.mathsisfun.com/converting-fractions-percents.html