Question

236 : 12: :428 : 16 : : 339​

Answer 1

$\large{\boxed{\sf{Answer}}}$

? = 18

236 : 12 :: 428 : 16 :: 339 : 18

$\large{\boxed{\sf{Full \: solution}}}$

2 × 3 + 6 = 6 + 6 = 12

4 × 2 + 8 = 8 + 8 = 16

3 × 3 + 9 = 9 + 9 = 18

Answer is 18.

? = 18

236 : 12 :: 428 : 16 :: 339 : 18