What are two numbers are add up to 9, and multiply to 20?

A 8 + 1 = 9, 8 x 1= 8
B 7 + 2 = 9, 7 x 2 = 14
C 6 + 3 = 9, 6 x 3 = 18
D 5 + 4 = 9, 5 x 4 = 20

1 answer

The two numbers that add up to 9 and multiply to 20 are found in option D:

5 + 4 = 9, and 5 x 4 = 20.

So the correct answer is D.