Question

3 6 12
4 8 16
5 10 ?

Answer 1

5. 10. 20 we get this frm -given. -3, 3*2=6,3*4=12 and another set is 4,4*2=8,4*4=16 so therefore 5,5*2=10,5*4=20 so the answer is 20

Answer 2

3 6(=3*2) 12(=6*2)
4 8(=4*2) 16(=5*2)
5 10(=5*2) 20(=10*2)

They are being multiplied by 2.