3 4 8 15 31 ??

What comes next... and how??

• 56
  bcoz it is ladder form ques as
  3 4 8 15 31 ??
  1 4 7 16 ??
  3 3 9 ??
  16+9=25;25+31=56
• 12 years agoHelpfull: Yes(30) No(1)
• sorry for previous ans. it will be 62
  procedure is as same as it was in my prev. post
  add 1 before the ques.
  so now it become 1 3 4 8 15 31
  now,
  1+3=4, 1+3+4=8, 3+4+8=15(exclude 1), 1+3+8+15=31, 1+3+4+8+15+31=62
• 12 years agoHelpfull: Yes(7) No(17)
• add 1 before the ques.
  so now it become 1 3 4 8 15 31
  now,
  1+3=4, 1+3+4=8, 3+4+8=15(exclude 1), 1+3+8+15=31, 1+3+8+15+31=58
• 12 years agoHelpfull: Yes(3) No(16)
• ANS:94.. (3*1)+1=4
  (8*2)-1=15
  (31*3)+1=94
• 12 years agoHelpfull: Yes(3) No(7)
• 3+4=7 (3,4)
  7+1=8
  8+8=16 (3,4,8)
  16-1=15
  15+15=30 (3,4,8,15)
  30+1=31
  31+31=62 (3,4,8,15,31)
  62-1=61
  61+61=122 (3,4,8,15,31,61)
  122+1=123
  (I guess answer is 61)
  
• 8 years agoHelpfull: Yes(0) No(0)
• the answer is 56 its is of ladder type....take the diffence of all the term and repeat this process 2 times u get the common pattern
• 7 years agoHelpfull: Yes(0) No(0)