# Two, completely independent, means exist to obtain the same answer

... one "local"; and one "global"

1)  1 +  1 =  2
2)  2 +  1 =  4
3)  3 +  2 =  9
4)  5 +  3 = 17
5)  7 + ?? = 32


Can you determine the correct answer and both means of obtaining it?

5

Obtained by

consider question number is n, first number is a and second number is b, so a + b(n) = c, so 7 + 5c = 32, 5c = 25, c = 5

Can obtained too through

Fibonacci sequence

• You need a second method of obtaining it — namely that rot13(gur frpbaq ahzoref sbyybj gur Svobanppv Frdhrapr). – El-Guest Apr 21 at 3:48
• @El-Guest does it mean this question consists 2 answers? – Casablanca Kookie Apr 21 at 3:58
• the question states that you need to find the correct answer and both ways of finding the correct answer. – El-Guest Apr 21 at 11:22
• @El-Guest I’m new here, even I have put you in the credit for my edit above but it doesn’t state there, what is ‘Summary of change’ column? – Casablanca Kookie Apr 21 at 11:58
• the summary of changes is found in the edit history (by clicking “Edited” x hours ago). Thanks for the credit, but you got most of the answer by yourself! All credit to you! – El-Guest Apr 22 at 3:15

1) 1 + 1 = 2-------1 + 1 + 1x0 = 1+1+0= 2
2) 2 + 1 = 4 ------2 + 1 + 1x1 = 2+1+1= 4
3) 3 + 2 = 9 ------3 + 2 + 2x2 = 3+2+4 = 9
4) 5 + 3 = 17------5 + 3 + 3x3 = 5+3+9 = 17
5) 7 + 5 = 32------7 + 5 + 5x5 = 7+5+25= 32