Question

24. Find the number of bricks to be laid in a square path of
side 20 m, if the length and breadth of each brick is
4 m and 2 m respectively.

Answer 1

Given:

• The length of the square path is 20 m
• Length and breadth of each brick is 4 m and 2 m respectively

To find: the number of bricks to be laid

Solution:

• The area of the path is
• = 20² square m
• = 400 square m

• Area of each brick is
• = 4 × 2 square m
• = 8 square m

• So the required number of bricks is
• = area of the path / area of each brick
• = 400 / 8
• = 50

Answer: number of bricks required is 50.