Choose an answer that creates a third pair of numbers that are related to each other in the same way that the first two pairs are related.
[12 —> 24] [3 —> 6] [420 —> ?]
560
210
840
423

Correct!

Nice try!

Please choose an answer!

solve

multiply the first number by 2
Try another topic:
Fluid Reasoning (7-8)