Karen calculates the volume of cylinder a with a radius of 3 inches, and a height of 6 inches. the volume of this cylinder is 54π in3. cylinder b also has a radius of 3 inches, but the height is doubled. what is the relationship between the volumes of the two cylinders?

a) the volume of cylinder b is half the volume of cylinder a.
b) the volume of cylinder b is twice the volume of cylinder a.
c) the volume of cylinder b is 4 times the volume of cylinder a.
d) the volume of cylinder b is 8 times the volume of cylinder a.

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following