. 8 6 17 14 35 31 75 _ 143? 3. Inspired by Fibonacci series Sangeet decided to create his own series which is 1, 2, 3, 7, 7, 22, 15, 67, 31, _, 63?
a)202
b)31
c)76
d)49

• 1st series:
  8-6=2 , 17-14=3, 35-31=4 ... so this way 75-5=70 tobe placed in the blank space.
  2nd series:
  1*2+1=3
  3*2+1=7
  7*2+1=15 & so on.. for 1,3,,7,15,31,63.... i.e the odd placed numbers in the series 1 2 3 7 7 22 15 67 31__63
  now the odd placed numbers in the series are 2,7,,22,67,__, which follows the pattern :
  2*3+1=7
  7*3+1=22
  22*3+1=67
  so, the required value is 67*3+1=202
• 9 years agoHelpfull: Yes(10) No(1)
• ans a)202
  divide the series in two parts
  1,3,7,15,31,63
  next 2,7,22,67,__
  in next series diff b/w no. is 5,15,45
  ie. next no is sum of prev. no+3*diff. of no.
• 9 years agoHelpfull: Yes(5) No(1)
• will u plz explain the solution clearly
• 9 years agoHelpfull: Yes(2) No(1)
• in First series 8 6 17 14 35 31 75 __ 143 will be 70
  
  
  and the next one 1 2 3 7 7 22 15 67 31 __ 63 will be 202
• 9 years agoHelpfull: Yes(1) No(4)
• explain clearly.
• 9 years agoHelpfull: Yes(1) No(1)
• 1,2,3,7,7,22,15,67,31,_,63
  alternate nos 1,3,7,15 ... (1+2,3+4,7+8)
  another series 2,7,22,67,_(7-2=5,22-7=15(5*3),67-22=45(15*3),_-67=45*3)
  ans=202
• 9 years agoHelpfull: Yes(0) No(0)