Find odd number in series:
7,28,63,124,215.

• Odd No. is 28(3^3+1)
  Others are: 2^3-1,4^3-1,5^3-1,6^3-1
• 12 years agoHelpfull: Yes(19) No(1)
• ans is 342....its not 28 its 26
  2^3-1=7
  3^3-1
  4^3-1
  5^3-1
  6^3-1
  7^3-1
  so its 343-1=342
  
  
• 7 years agoHelpfull: Yes(1) No(1)
• here the question is asked for find out the odd series ,so ans is 28 not 342
  
• 7 years agoHelpfull: Yes(1) No(0)