Answer:
Group #1: 12
Group #2: 21
Step-by-step explanation:
The ratio is 4:7 which means for each 4 elements in group number one we would have 7 elements in the group number 2. This gives us a total of 11 elements but the total is 33, so we do it again two more times to get the total of 33 elements (11x3=33) so now we know we have to multiply 3 times the ratio to get the correct answer like this
4(3):7(3)
12:21
Proof:
4+7=11
4+7=11
4+7=11
4+4+4=12
7+7+7=21
11+11+11=33
12+21=33
