If A is an odd number, take it as 1 1, then from the meaning of the question, C * B =330, and B is greater than A, and B can only take 10 at most, which does not meet the meaning of the question. If a is an even number, you can take 10, so from the meaning of the question, C * B =396, and b can take 15 at most. At this time, C is 24, which is in line with the meaning of the question, so B can only take 15 at most.

The answer is wrong. I saw the process, and my thinking should be correct.