Which pair of numbers has a geometric mean of 30?

Answer 1

The geometric mean of two numbers is the square root of their product. In you instance any two factors of 900 will have a geometric mean of 30

eg 2 & 450 (2 x 15 = 30, 30 x 15 = 450);

3 & 300 (3 x 10 = 30, 30 x 10 = 300);

6 & 150 (6 x 5 = 30, 30 x 5 = 150) etc etc