8,6,17,14,35,30,71 x 143... what will be value of x??

• simple
  6*2+2=14
  14*2+2=30
  then
  30*2+2=62
  Ans:62
• 12 years agoHelpfull: Yes(17) No(1)
• there are 2 series :
  1) 8,17,35,71,143 (8 + 9 =17 then 17+18 = 35 then 35+36 = 71 and so on)
  
  2) 6,14,30,x (6+8 =14 then 14+16 = 30 then 30+32 = 62)
  
  therefore , the value of x = 62..
• 12 years agoHelpfull: Yes(10) No(1)
• There are 2 series with 8,17,35,71,143 ---------(i)
  and 6,14,30,x -------------(ii)
  in (i)st eqn relation is *2+1 that means 17=8*2+1, 35=17*2+1 and so on
  in (ii)nd eqn relation is *2+2 hence answer will be 30*2+2=62 ans
• 12 years agoHelpfull: Yes(4) No(1)
• 8,17,35,71,143
  6,14,30,x jst separate odd n even terms
  6
  6*2+2 = 14
  14*2+2 = 30
  30*2+2 = 62 hence 62 is the ans
• 12 years agoHelpfull: Yes(3) No(1)
• Ans 62
  6*2+2=14
  14*2+2=30
  therefore
  30*2+2=62
• 12 years agoHelpfull: Yes(1) No(1)
• sorry answr is 62
  30+32
• 12 years agoHelpfull: Yes(1) No(2)
• _6_14_30_x_
  
  6*2+2=14
  14*2+2=30
  30*2+2=62
  
  ans 62
• 12 years agoHelpfull: Yes(1) No(0)
• x=54
  there r 2 alternative series
  8,8*2+1=17,17*2+1=35,35*2+1=71.........
  6,6+8=14,14+16=30,30+24=54
• 12 years agoHelpfull: Yes(0) No(6)
• the equation is (n*2)+2...hence answer is 62..as (30*2)+2=60..
• 12 years agoHelpfull: Yes(0) No(2)