Question

REAAAALLLLY NEED HELP

Answer 1

If you think about it, the question is asking us to find the greatest common factor, or GCF, of the two numbers, 24 and 18. 
First, find all of the factors of 24. 
The factors are: 1, 2, 3, 4, 6, 8, 12, 24 
Next, find the factors of 18.
The factors are: 1, 2, 3, 6, 9, 18 
List out all of the factors that both of the numbers have. 
The factors are: 1, 2, 3, 6
Whichever is the greatest of these numbers is the GCF. 
The GCF is 6, so the greatest number of groups he can make and still be able to win is 6. 
Hope this helps!

Answer 2

All you have to do with this question is find the GCF (Greatest Common Factor). You can do this by listing out all of the factors for each number.

For 18)  1, 2, 3, 6, 9, 18
For 24)  1, 2, 3, 4, 6, 8, 12, 24

Then you find the largest number that both share, so for this particular problem that would be 6.

So your final answer would be that Alex can make a maximum of 6 groups to have a chance at winning the prize.

If you need further explanation, just let me know :)