The average number of a, B and C is 44, and the ratio of a, B and C is 2 / 3:3 / 4:5 / 12?

2/3:3/4:5/12=8:9:5
8+9+5=22
The number of B is: 44 × 3 △ 22 × 9 = 54
A is larger than C: 44 × 3 △ 22 × (8-5) = 18

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