Find the pattern in each line of three numbers. What goes in the blank?
1 2 9
3 4 20
5 6 12
17 12 _
I'll admit that I didn't figure this one out, in fact, I'm still trying to....But, I had a friend take a look at it, and his solution is below. BTW, he's a chemical engineer, so I think we can trust his answer....
"if you call the first number "A" and the second number "B", you can get the third number with the following equation:
114 ( A / B ) - [ ( 35 B + 122 ) / 4 ]
Then the last row would be:
17, 12, 26"
Solution
