Mensurationhard · Past Paper
The edge of a cube is increased by 50%. What is the percentage increase in its volume?
A50%
B125%
C237.5%
D337.5%
✓ Correct Answer: C — 237.5%
New side = 1.5s. New volume = (1.5s)^3 = 3.375s^3. Increase = 2.375s^3, which is 237.5%.
Share this question
More from Mensuration
- The total surface area of a prism whose base is a right-angled triangle is 200 sq. cm and height is 10 cm. Find the perimeter of the base if the base area is 20 sq. cm.
- If the area of an equilateral triangle is 9*sqrt(3) sq. cm, find its perimeter.
- The total surface area of a right circular cone is 90π sq. cm. If its radius is 5 cm, find its slant height.
- A tent is in the form of a cylinder surmounted by a cone. If the height and diameter of the cylindrical part are 2.1 m and 4 m, and slant height of the cone is 2.8 m, find the area of the canvas used.
- A room's dimensions are 5m x 4m x 3m. It has one door of 2m x 1m and two windows of 1m x 1m each. Find the area of the walls to be painted.