How many of the following numbers are divisible by 3 but not by 9?
2133, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276

• ans: 6
  
  2133, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276
  
  sum of digits of given no.s are
  
  9,12,18,9,21,12,18,21,15,24
  
  divisible by 9 are 9,18,9,18 (four no.s)
  
  remaining 6 no.s are divisible by 3 but not by 9.
• 10 years agoHelpfull: Yes(15) No(1)
• 6 numbers are divisible by 3 and not 9
• 10 years agoHelpfull: Yes(1) No(3)
• 2343,5286,5340,7347,8115,9276 are not divusible by 9 but divusible by 3
• 10 years agoHelpfull: Yes(1) No(2)
• ans is total 6, according to divisibility test only 2343,5286,5340,7347,8115,9276 are not divisible by 9 all are divisible by 3
• 10 years agoHelpfull: Yes(0) No(0)
• ans:5
  2343,5286,5340,7347,9276
  the above numbers dovisible by 3 but not by 9
• 10 years agoHelpfull: Yes(0) No(0)
• only 6 of them are divisible by 3 bt not by 9
  
• 10 years agoHelpfull: Yes(0) No(0)
• since disivibility rule of 3 & 9 is that sum of digits of a number should be divisible by 3 or 9 .
• 7 years agoHelpfull: Yes(0) No(0)