Question

200 bricks are put one over the other to build a wall in one column. If the height of one brick is 10 cm, then what is the height of the wall?

• A. 100 m
• B. 50 m
• C. 200 m
• D. 20 m

Answer 1

The correct option is D 20 m

Height of each brick = 10 cm
Number of bricks used in one column
= 200

So, height of the wall
= Total number of bricks x height of one brick
= 200 × 10 cm
= 2000 cm

Also, 100 cm = 1 m
Therefore, height of wall = 2000 cm
= 2000 ÷ 100 m
= 20 m