How many of the following numbers are divisible by 3 but not by 9 ?
2133, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276  Choose the correct choice from the following
A) 9 B) 7 C) 4 D) 8 E) 6
6   6   6xplanation: Marking (/) those which are are divisible by 3 by not by 9 and the others by (X), by taking the sum of digits, we get:s   2133 9 (X)   2343 12 (/)   3474 18 (X)   4131 9 (X)   5286 21 (/)   5340 12 (/)   6336 18 (X)   7347 21 (/)   8115 15 (/)   9276 24 (/)   Required number of numbers = 6
<result>E</result>
How many of the following numbers are divisible by 3 but not by 9 ?
2133, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276