For the question on the picture with -3/2 the answer is x=12, but the one you typed with -3/4 the answer is x=24
8 White
6 Black
4 Blue
5 Brown
Total=8+6+4+5=23
1. White to brown = 8:5
2. Blue to non-blue =4:(23-4) = 4:19
3. Black to all = 6 : 23
4. Ratios equivalent to Q1, 8:5
Multiply ratio by integer factors:
2(8:5)=16:10
3(8:5)=24:15
4(8:5)=32:20
etc.
Answer:
5/6 because you have a 4/12 chance its divisible bye 3. and 6/12 divisible by 2.
4/12+6/12=10/12
10/12=5/6
Due to the u-shaped graph suggested by these data points, this would best be matched with a quadratic function.
