The answer is 4. You do 12 times 1/3. This is because this is important in order to find out the answer. The answer is 4.
Well, 4+1=5, so we need to first find:

Ivan gets

Tanya gets

We have a + b = 180 and a = 12 + b;
Then, 12 + b + b = 180;
12 + 2b = 180;
2b = 168;
b = 84;
a = 12 + 84;
a = 96;
Answer:
620
Step-by-step explanation:
55800/90