The numbers on the right column follows the following formula
[tex]\frac{5}{6}n[/tex]
Therefore, the number on the right column for question 3 is also on this format. 150 is equal to this expression for some given n, to find this value of n we just need to estabilish an equality between 150 and the expression.
[tex]150=\frac{5}{6}n[/tex]
Solving this expression for n, we have
[tex]\begin{gathered} 150=\frac{5}{6}n \\ 6\cdot(150)=6\cdot(\frac{5}{6}n) \\ 900=5n \\ \frac{(900)}{5}=\frac{(5n)}{5} \\ 180=n \end{gathered}[/tex]
And this give to us the n value, that is also the value for the left column. The answer for question 3 is 180.
