Even more patterns...

Level pending

Can you find the missing number?

(2, 2, 1, 4) = 6

(8, 8, 2, 10) = 3

(3, 9, 2, 4) = 1

(10, 10, 6, 10) = ?

1 solution

Noel Lo
May 28, 2015

Add the first and last numbers in each bracket and divide this sum by the difference between the two middle numbers to get the final result, ie.

$\frac{2+4}{2-1} = \frac{6}{1} = 6$

$\frac{8+10}{8-2} = \frac{18}{6} = 3$

$\frac{3+4}{9-2} = \frac{7}{7} = 1$

$\frac{10+10}{10-6} = \frac{20}{4} = \boxed{5}$