Series 3,15,35,__,99

• Ans: 63
  1*3=3
  3*5=15
  5*7=35
  7*9=63
  9*11=99
  etc...
• 12 years agoHelpfull: Yes(6) No(1)
• 2 square - 1 = 3, 4 square - 1 = 15, 6 square - 1 = 35, 8 square - 1 = 63, 10 square - 1 = 99
• 9 years agoHelpfull: Yes(0) No(0)
• 3+12=15
  @12+8=20
  20+15=35
  @20+8=28
  28+35=63
  @28+8=36
  36+63=99.......,
  
• 9 years agoHelpfull: Yes(0) No(0)