A conical flask is perfectly fitted inside a cylindrical container. Both have a base radius of 5 cm and height 12 cm. What is the ratio of the cone's volume to that of the cylinder?
Show answer & explanation
Correct answer: B
Explanation
Given:
Radius = 5 cm
Height = 12 cm
By the formula:
Volume of the cone = (1/3)πr²h
Volume of the cylinder = πr²h
Cone : cylinder = (1/3)πr²h : πr²h
= 1/3 : 1
= 1 : 3