What is the next number of the following sequence
5, 25, 61, 113,

• 5, 25, 61, 113, x
  
  1^2 + 2^2 = 5
  3^2 + 4^2 = 25
  5^2 + 6^2 = 61
  7^2 + 8^2 = 113
  9^2 + 10^2 = x ====> x = 181
• 10 years agoHelpfull: Yes(54) No(0)
• 5, 25, 61, 113, x
  25 - 5 = 20
  61 - 25 = 36
  113 - 61 = 52
  Difference : 20, 36, 52
  20 + 16 = 36
  36 + 16 = 52
  next difference should be 52 + 16 = 68
  So x - 113 = 68
  x = 181
  
  Ans : 181
  
• 10 years agoHelpfull: Yes(30) No(0)
• 181 will be the answer as first calculate the difference as 25-5=20 , 61-25=36,113-61=52 now again check the difference 36-20=16, 52-36=16 means we have to add 16 to 52 then we get 68 and add this to 113 you will get the answer
• 10 years agoHelpfull: Yes(2) No(0)
• 181 will be ans.
  
• 10 years agoHelpfull: Yes(0) No(0)
• 181 is the ans.
• 9 years agoHelpfull: Yes(0) No(0)
• d) IS .
  
  100%
• 7 years agoHelpfull: Yes(0) No(1)
• 5,25,61,113
  5+20=25
  25+36=61
  61+52=113
  difference between each added second number:
  36-20=16
  52-36=16
  hence, 52+16=68
  therefore, 113+68=181
• 4 years agoHelpfull: Yes(0) No(0)
• 5, 25 , 61, 113
  25-5=20 61-25=36 113-61=52
  36-20=16 52-36=16 so 52+16=68
  68+113=181
• 3 years agoHelpfull: Yes(0) No(0)