27,31,40,56,81,……..

• 117
  
  27+2^2=31
  31+3^2=40
  40+4^2=56
  56+5^2=81
  81+6^2=117
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• THE DIFFERENCES IN THE CONSECUTIVE NUMBERS ARE
  4 9 16 25 36 ....
  SO THE ANSWER IS 49
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• 117
  27+4=31
  31+9=40......
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• Difference of consecutive no.s are consecutive squares. hence , next no. 81+36=117
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• 21+(2)^2 , 31+(3)^2 , 40+(4)^2 , 56+(5)^2 , 81+(6)^2 ,117
  Ans 117
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• 27-31=+4 (2^2)
  31-40=+9 (3^2)
  40-56=+16 (4^2)
  56-81=+25 (5^2)
  81-X=+36 (6^2)
  X=117
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• may be 117
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• 117... Diff bw the nos are 4,9,16,25,__36.. which are squares of natural nos
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