Among the three digit numbers without repetition composed of numbers 1, 2, 3, 4, 5 and 6, the number that is a multiple of 9 is () A. 12 B. 18 C. 20 D. 30

Among the three digit numbers without repetition composed of numbers 1, 2, 3, 4, 5 and 6, the number that is a multiple of 9 is () A. 12 B. 18 C. 20 D. 30

If it can be divided by 9, then the sum of three digits, ten digits and hundred digits must be divisible by 9. Such combinations may be three digits in 1, 2 and 6, or three digits in 1, 3 and 5, or three digits in 2, 3 and 4, so there are 18 kinds of 6 + 6 + 6