Q. What is the next number of the following sequences.

1. 8,5,9,7,2,25,51,16,8,6,...

2. 13,21,32,49,78,131,...

• 1)correct series is
  8,5,9,7,2,25,5,1,16,8,6
  8-5=3 ->3^2=9
  7-2=5 ->5^2=25
  5-1=4 ->4^2=16
  8-6=2 ->2^2=4
  ans is 4
• 11 years agoHelpfull: Yes(24) No(1)
• 13*2-5=21 21*2-10=32 32*2-15=49 49*2-20=78 78*2-25=131 131*2-30=232
  
• 11 years agoHelpfull: Yes(19) No(1)
• 2)
  21-13=8,11-8=3
  32-21=11,17-11=6
  49-32=17,29-17=12
  78-49=29,53-29=24
  131-78=53,x-53=48=101
  so ans is 101+131=232
• 11 years agoHelpfull: Yes(7) No(1)
• 2Q)(21-13),(32-21).(49-32),(78-49),(131-78),(x-131)
  8 11 17 29 53 y
  (11-8),(17-11),(29-17),(53-29),(y-53)
  3 6 12 24 48
  so,y-53=48 ==>y=101 and
  x-131=y i.e.,x=y+131==>x=101+131=232
  hence,Ans:232
  
  
  
  
  
• 11 years agoHelpfull: Yes(5) No(0)
• 2. 13,21,32,49,78,131,...
  21-13=8
  32-21=11
  49-32=17
  78-49=29
  131-78=53
  232-131=101
  so 11-8=3
  17-11=6
  29-17=12
  53-29=24
  101-53=48
  hence 131+48=179 which is the correct ans .
• 11 years agoHelpfull: Yes(2) No(4)
• 12) 7.2,2.2,3.2,16,11,12,60,55,56
  take 3 7.2-5=2.2
  2.2+1=3.2
  16-5=11
  11+1=12
  60-5=55
  55+1=56
  so ANS=56
• 11 years agoHelpfull: Yes(0) No(0)