Question

3 6 12
4 8 16
5 10 ?

Answer 1

3 6 12
4 8 16
5 10 20

They are being multiplied by 2.

Answer 2

3 x 2=6 3 x 4=12
4 x 2=8 4 x 4=16
5 x 2=10 5 x 4=20
multiplying with first two even numbers

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