7,9,13,21,37,?

• the correct sequence will be,
  7,9,13,21,37,69.
  sol:-
  7+2^1=9
  9+2^2=13
  13+2^3=21
  21+2^4=37
  37+2^5=69.
  hence 69 will be the last value.
• 11 years agoHelpfull: Yes(20) No(0)
• the next number is 69
  
  double each number and subtract 5 to give the next number in the series
  
  7+7 = 14-5 = 9
  9+9 = 18-5 = 13
  13+13= 26-5 = 21
  21+21= 42-5 = 37
  37+37= 74-5 = 69
  
• 11 years agoHelpfull: Yes(14) No(10)
• 7, 9, 13, 21, 37, 69
  2 4 8 16 32
  
  9-7=2, 13-9=4 21-13=8 37-21=16 69-37=32
  
  ans: 69
• 11 years agoHelpfull: Yes(7) No(7)
• 69
  as 13-7=6
  21-9=12
  37-12=24
  x-21=48
  x=69
• 11 years agoHelpfull: Yes(3) No(0)
• answer 69
  
  adding powers of 2 .next 37+32=69
  
• 11 years agoHelpfull: Yes(2) No(0)
• 7+2=9
  9+2*2=13
  13+2*2*2=21
  21+2*2*2*2=37
  37+2*2*2*2*2=69
  The answer is 69
• 11 years agoHelpfull: Yes(2) No(0)
• 
  7+2=9
  similarly the next to be added is the double of 2 i.e, 4 and the next is 8 this seq is followed here and the result is
  69.
• 11 years agoHelpfull: Yes(2) No(0)
• 69.
  9-7=2
  13-9=4
  21-13=8
  37-21=16
  so the next term is 37+32=69
• 11 years agoHelpfull: Yes(2) No(0)
• 7 + 2^1 = 9
  9 + 2^2 = 13
  13+ 2^3 = 21
  21+ 2^4 = 37
  37+ 2^5 = 69
  
  The ans is 69
• 11 years agoHelpfull: Yes(2) No(0)
• 7+2=9
  9+(2*2)=9+(4)=13
  13+(2*4)=13+(8)=21
  21+(2*8)=21+(16)=37
  37+(2*16)=37+32=69
• 11 years agoHelpfull: Yes(1) No(0)
• anw will be 69
• 11 years agoHelpfull: Yes(1) No(0)
• anw will be 69
• 11 years agoHelpfull: Yes(1) No(0)
• the differece between the two number is to the power of 2.so the answer is 69.
• 11 years agoHelpfull: Yes(1) No(0)
• ans :- 69
  simple equation
  7+2=9
  9+4=13
  13+8=21
  -.......
  37+32=69
• 11 years agoHelpfull: Yes(1) No(0)
• its solution is 49 the solution are as follows
  7+2=9
  9+2^2=9
  9+2^3=21
  and so on we get a series
• 11 years agoHelpfull: Yes(1) No(2)
• Answer 69
  
  7+2=9
  9+4=13
  13+8=21
  21+16=37
  37+32=69
  So, there is increment 2^n i.e. 2^1,2^2,............ and so on
• 11 years agoHelpfull: Yes(1) No(0)
• ans is 69. Difference is 2,4,8,16,32. 32+37--69 ans
• 11 years agoHelpfull: Yes(0) No(0)
• 7+2 =9
  9+4=13
  13+8=21
  21+16=37
  37+32+69
  so ans is 69
• 7 years agoHelpfull: Yes(0) No(0)
• 7+2=9
  9+4=13
  13+8=21
  .......
  37+32=69 Ans
• 7 years agoHelpfull: Yes(0) No(0)