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

• This Series Question has 2 alternative series in it,
  1,3,7,15,31 --> 1,3-1=2,7-3=4,15-7=8,31-15=16,63-31=32
  similarly for the next series,2,7,22,67 -->2,7-2=5,22-7=15,67-22=45,x-67=(45x3);
  Here,5,15,45 are in G.p with r = 3,solving for x,we get,
  
  => x = 202,option A.
• 12 years agoHelpfull: Yes(17) No(1)
• here are 2 series
  1 series:1,3,7,15,31,63
  1*2+1=3
  3*2+1=7
  7*2+1=15
  15*2+1=31
  2 series:2,7,22,67,....
  2*3+1=7
  7*3+1=22
  22*3+1=67
  67*3+1=202
  202 is correct answer
• 12 years agoHelpfull: Yes(16) No(1)
• two r present 1,3,7,15 the format is (n*2)+1 nd other series is
  2,7,22,67,_ is (n*3)=1
  2*3+1=7
  7*3+1,22*3+1 nd 67*3+1=202 is ans
• 12 years agoHelpfull: Yes(6) No(1)
• A) 202
  here alternative digits have a relationship between them....
• 8 years agoHelpfull: Yes(0) No(0)