Find the pair of numbers that would fit into the pattern:
7 11, 8 12, 9 13, 10 14, ? ?

The given series consists of pairs of numbers:
* 1st pair: 7, 11 (Difference is $+4$)
* 2nd pair: 8, 12 (Difference is $+4$)
* 3rd pair: 9, 13 (Difference is $+4$)
* 4th pair: 10, 14 (Difference is $+4$)

The first number of each pair increases by 1: $7\to 8\to 9\to 10\to 11$.
The second number of each pair also increases by 1: $11\to 12\to 13\to 14\to 15$.

Therefore, the next pair in the pattern is 11 15.