1.25,9,22.5,0.75,8.5,22,0.25,?

• Ans =8
  1.25-.5=.75
  9-.5=8.5
  22.5-.5=22
  .75-.5=.25
  8.5-.5=8
  Reason when .5 substracted by the no. the resulted no is 3rd right no. after that no.
• 12 years agoHelpfull: Yes(36) No(3)
• 1.25-0.5=0.75
  9-0.5=8.5
  22.5-0.5=22
  0.75-0.5=0.25.....similarly going on...22-0.5=21.5ans
  
• 9 years agoHelpfull: Yes(6) No(1)
• 1.5-0.5=0.75
  9-1.5=8.5
  22.5-0.5=22
  0.75-0.5=0.25
  n dis process continues...
  so 8.5-1.5=7(ans is 7)
• 12 years agoHelpfull: Yes(1) No(15)
• ans 8
  1.5-0.5=0.75
  9-1.5=8.5
  22.5-0.5=22
  0.75-0.5=0.25
  n dis process continues...
  so 8.5-0.5=7(ans is 8)
• 12 years agoHelpfull: Yes(1) No(2)
• ans:8
  1.25+7.75=9
  9+13.5 =22.5
  22.5-21.75=.75
  .75+7.75=8.5
  8.5+13.5=22
  22-21.75=.25
  .25+7.75=8 (ans,coz +7.75 +13.5 -21.75 alternatively operate on nos.)
• 11 years agoHelpfull: Yes(1) No(1)
• And:19.5
  (1.25,0.75,0.25)
  (9,8.5,8)
  (22.5,22,19.5)
  Difference =0.5
  22-0.5=19.5
• 9 years agoHelpfull: Yes(1) No(1)
• Each set of 3 numbers has .5 subtracted from the previous set.
  
  (1.25,9,22.5) Subtract .5 from each you get:
  (0.75,8.5,22) Subtract .5 from each you get:
  (0.25,8,21.5)
  
  So it's 8 followed by 21.5
  
• 8 years agoHelpfull: Yes(1) No(0)