What is the ratio of volume of sphere to that of the cone? I. Radius of the cone is twice that of the sphere.
II. Height of the cone is equal to the radius of the sphere.
We need the ratio of both, radius and height, in order to find the ratio of the volume. Thus both the statements are required.
If y is a positive number, what is the value of y? I. |y - 4| = 3 II. y2=y+6
The sum of p consecutive positive integers is 45. What is the value of p? Statement A: p is even Statement B: p < 9