Answer: 10 guests brought utilery
Step-by-step explanation:
If we take 24 out of the problem right now and replace it with x, you can find the the fraction of people that brought utilery.
So x=24 just so you remember
x-1/3x-1/4x= #of guests who brought utilery.
x-7/12x= 5/12x
Now if we plug in x=24 into our equation,
5/12(24)=10 guests