12,32,72,152,?,632

• 12+20=32
  32+40=72
  72+80=152
  hence,152+160=312
  and 312+320=632
• 11 years agoHelpfull: Yes(3) No(0)
• 312
  12*2+8=32
  32*2+8=72
  72*2+8=152
  152*2+8=312
  312*2+8=632
• 11 years agoHelpfull: Yes(2) No(0)
• 32-12=20
  72-32=40
  152-72=80
  x-152=160
  so x=152+160=312.
  x=312.
• 11 years agoHelpfull: Yes(1) No(0)
• 32-12=20
  72-32=40
  152-72=80
  x-152=160
  x=152+160=312
  x=312
  632-312=320
• 11 years agoHelpfull: Yes(0) No(0)
• ans is 312. because 12+20=32,32+40=72,72+80=152,152+160=312...
  
• 11 years agoHelpfull: Yes(0) No(0)
• Ans. 312
  32-12=20
  72-32=40
  152-72=80
  x-152=160, x=312
  632-312= 320
• 11 years agoHelpfull: Yes(0) No(0)
• the difference between 12 and 32 is 20 and 32 and 72 is 40
  so each difference is multiplied by 2
  answer is 312
• 11 years agoHelpfull: Yes(0) No(0)