We know that when 45 is divided into 1042 it doesn't come out as even.
So, we have to find a number when divided into 1042 it comes out even.
We know that each exhibit will contain x amount of pictures.
45x = 1042
Divide both sides by 45
x ≈ 23.15
But x have to be a whole number, so keep only the 23 part.
So, 23 pictures in each exhibit 23*45 = 1035
Not quite as 1042
Subtract 1035 from 1042.
1042 - 1035 = 7
Then subtract 7 from 45
45 - 7 = 38
The answer is 38
Hope this helps!
