1=2
2=10
3=30
4=68
5=?

• 130
  
  
  5= 5^3+5=125+5=130
  
  as 1=1^3+1
  2= 2^3+2=8
  ..
  4=4^3+4=68
  5^3+5=125+5=130
• 11 years agoHelpfull: Yes(12) No(2)
• Ans=130
  Series of (n^2+1)n, so (5^2+1)5=130
• 11 years agoHelpfull: Yes(7) No(1)
• 1+1^3=2
  2+2^3=10
  3+3^3=30
  4+4^3=68
  5+5^3=130
• 11 years agoHelpfull: Yes(6) No(4)
• Ans: 140
  1*2=2, 2*5=10, 3*10=30, 4*17=68, 5*28=140
  |______|________|________|________|
  | | | |
  3-------5--------7--------11------These are prime nos.
  
  
• 10 years agoHelpfull: Yes(1) No(1)
• ans=130
  reason=in the first 1=2 as 1*2=2
  in second 2=10 as 2*5=10
  in third 3=30 as 3*10=30
  1n forth 4=68 as 4*17=68
  in this we see the multiplied part of 1,2,3,4
  it is 2,5,10,17
  2+3=5
  5+5=10
  10+7=17
  we see added part of 2,5,10
  it is 3,5,7 it is odd series next number will be 9
  so 17+9=26
  now to get the answer
  1n fifth case we multiply 5 by 26
  we get the answer as 130
• 11 years agoHelpfull: Yes(0) No(0)
• Ans: 140
  1*2=2, 2*5=10, 3*10=30, 4*17=68, 5*28=140
  |_____|_______|_______|_______|
  | | | |
  3---------5-------7------11---------------These are prime nos.
  
• 10 years agoHelpfull: Yes(0) No(0)
• 1=1+1^3=2
  Ans:130
  2=2+2^3=10
  3=3+3^3=30
  4=4+4^3=68
  5=5+5^3=130
• 10 years agoHelpfull: Yes(0) No(0)
• 1*1^2+1=2
  2*2^2+2=10
  3*3^2+3=30
  4*4^2+4=68
  5*5^2+5=130
• 10 years agoHelpfull: Yes(0) No(0)
• 1+1^3=2;2+2^3=10;3+3^3=30;4+4^3=68;5+5^3=130.... so the answer is 5=130
• 10 years agoHelpfull: Yes(0) No(0)
• 1+(1^3)=2
  2+(2^3)=10
  3+(3^3)=30
  4+(4^3)=68
  5+(5^3)=130
• 10 years agoHelpfull: Yes(0) No(0)