6,8,1,8,15,17,12,16, ?

• i think the third number is 10
  divide the numbers in a group of three, then we can write
  6+8-10 = 4
  8+15-17 = 6
  so the next number, 12+16-x = 8
  x = 20
  so the next number will be 20
• 9 years agoHelpfull: Yes(2) No(0)
• 20,bcz it is a series of 4,6,8
• 7 years agoHelpfull: Yes(0) No(0)