6, 13, 25, 51, 101, ?

A. 201 B. 202
C. 203 D. 205

• C.203
  
  It have 2 sequence
  
  1st = 6, 25, 101
  2nd =13, 51, ??
  
• 12 years agoHelpfull: Yes(1) No(1)
• c.203. it has two sequences.
  one is 6*4=24+1=25.
  25*4=100+1=101.
  other is 13*4=52-1=51.
  51*4=204-1=203.
• 12 years agoHelpfull: Yes(1) No(1)
• 6+6=12 12+1=13
  12+12=24 24+1=25
  25+25=50 50+1=51
  50+50=100 100+1=101
  100+100=200 200+1=201
• 7 years agoHelpfull: Yes(0) No(0)