Aptitude - Volume and Surface Area - Discussion
Discussion Forum : Volume and Surface Area - General Questions (Q.No. 15)
15.
How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 8 m x 6 m x 22.5 cm?
Answer: Option
Explanation:
| Number of bricks = | Volume of the wall | = |  |
800 x 600 x 22.5 |  |
= 6400. |
| Volume of 1 brick | 25 x 11.25 x 6 |
Discussion:
11 comments Page 2 of 2.
D Priya said:
7 years ago
Hi @Srj,
Both the wall and brick are in cuboid shape. So we consider the total volume of wall to fill with the total volume of bricks. No doubt shud arise to use TSA of cuboid because TSA talks only about the area. But we fill the wall with bricks so we calculated using volume.
Both the wall and brick are in cuboid shape. So we consider the total volume of wall to fill with the total volume of bricks. No doubt shud arise to use TSA of cuboid because TSA talks only about the area. But we fill the wall with bricks so we calculated using volume.
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