Mensurationmedium · Past Paper
How many bricks each of size 25cm x 10cm x 8cm will be required to build a wall 5m long, 3m high and 16cm thick?
A1200
B1000
C1500
D2000
✓ Correct Answer: A — 1200
Vol of wall = 500*300*16. Vol of brick = 25*10*8. Number = (500*300*16) / (25*10*8) = 20 * 30 * 2 = 1200.
Share this question
More from Mensuration
- What is the volume of a tetrahedron with edge length 'a'?
- The volume of a hemisphere is 18π cm³. Find its radius.
- A swimming pool is 20 m long, 15 m wide, and 2 m deep. Find its volume.
- What is the area of a sheet needed to make an open cylinder (no top) with radius 'r' and height 'h'?
- The base of a triangle is 4 times its height. If area is 50 sq. cm, find height.