1.25, 3, 7.1, 1.5, 1, 8.1, 1.75, -1, 9.1, 0.75, 2.00 ?

• series of three numbers
  1.25,3,7.1
  1.5,1,8.1
  1.75,-1,9.1
  0.75,2,10.1
  
  ans=10.1
• 11 years agoHelpfull: Yes(18) No(1)
• 1.25,3,7.1
  1.5,1,8.1
  1.75,-1,9.1
  0.75,2,10.1
  
  as 3rd colomn increment is same as first colomn
  so answer must be lower than 9.1 as 0.75 is lower than 1.75
  here in 1st colomn common difference 0.25 ==== 0.25*4=1 deduced from last
  so common difference 1====1*4
  9.1-4=5.1
• 11 years agoHelpfull: Yes(8) No(1)
• 10.1
  
  The third term in every triplet increases by 10.
• 11 years agoHelpfull: Yes(2) No(1)