3, 2, 1, 4, 5, 4, 5, 1, 0, 6, 3, ?

• 2 series:
  3 4 5 6
  (2,1) (5,4) (1,0) (3,?) diff is 1 so 3-2=1
  ansr is : 2
  
• 11 years agoHelpfull: Yes(17) No(1)
• consider (3,2,1)(4,5,4)(5,1,0)(6,3,?)
  1st column : increased by 1
  2nd columm: +3,-4,+2 respectively
  3rd column : +3,-4... its look like 2nd column
  so next no : (0+2)
• 11 years agoHelpfull: Yes(6) No(1)