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How Many Bricks of Length 25 Cm, Breadth 15 Cm and Height 10 Cm Are Required to Build a Wall of Length 6 M, Height 2.5 M and Breadth 0.5 M? - SSC (English Medium) Class 8 - Mathematics

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Question

How many bricks of length 25 cm, breadth 15 cm and height 10 cm are required to build a wall of length 6 m, height 2.5 m and breadth 0.5 m?

Solution

Let the number of bricks required be n. 

Volume of each brick = `25 xx 15 xx 10` = 3750 cm³

Volume of the wall = `6 xx 2.5 xx 0,5` = 7.5 m³

Number of bricks required(n) =  `"Vol of wall"/"vol of brick" = 7.5 xx 1000000/3750 = 2000`

Thus, 2000 bricks are required to make the wall.

  Is there an error in this question or solution?

APPEARS IN

 Balbharati Solution for Balbharati Class 8 Mathematics (2019 to Current)
Chapter 16: Surface area and Volume
Practice Set 16.1 | Q: 3 | Page no. 108
Solution How Many Bricks of Length 25 Cm, Breadth 15 Cm and Height 10 Cm Are Required to Build a Wall of Length 6 M, Height 2.5 M and Breadth 0.5 M? Concept: Standard Unit of Volume.
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