top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

What is the next mumbers in the series ? 9, 31, 73, 141, _, _, _, ?

+2 votes
1,727 views
What is the next mumbers in the series ? 9, 31, 73, 141, _, _, _, ?
posted Feb 25, 2015 by Tanmoy Debnath

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

+3 votes
 
Best answer

9 = 1^2 + 2^3
31 = 2^2 + 3^3
73 = 3^2 + 4^3
141 = 4^2 + 5^3
So
5^2 + 6^3 = 241
6^2 + 7^3 = 379
7^2 + 8^3 = 561

answer Feb 27, 2015 by Jaspalsingh Parmar
...