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

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..
11 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
11 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
11 years agoHelpfull: Yes(3) No(1)
Ans 62
6*2+2=14
14*2+2=30
therefore
30*2+2=62
11 years agoHelpfull: Yes(1) No(1)
sorry answr is 62
30+32
11 years agoHelpfull: Yes(1) No(2)
_6_14_30_x_

6*2+2=14
14*2+2=30
30*2+2=62

ans 62
11 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
11 years agoHelpfull: Yes(0) No(6)
the equation is (n*2)+2...hence answer is 62..as (30*2)+2=60..
11 years agoHelpfull: Yes(0) No(2)

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