Question

A brick measures 20 cm ×10 cm ×3.5 cm . How many bricks will be required for a wall dimensions 25 m × 4 m × 0.35 m ?

Answer 1

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A brick measures 20 cm ×10 cm ×3.5 cm . How many bricks will be required for a wall dimensions 25 m × 4 m × 0.35 m ?

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$\red{\bold{\underline {\underline{Given :-}}}}$

• Dimensions of the brick is = 20cm × 10cm × 7.5cm ()

• Dimensions of the wall is = 25m × 2m × 0.75m ( $\frac{3}{4}$43 m )

In cms :-

25m = 25 × 100

= 2500cm

2m = 2 × 100

= 200cm and

0.75m = 0.75 × 100

= 75cm.

Volume of the brick = l × b × h

= 20 × 10 × 7.5

= 1500cm³

Volume of the wall = l × b × h

= 2500 × 200 × 75

= 37500000cm³

∴ No. if bricks required for the wall = (volume of wall)/(volume of the brick)

= 25000 bricks

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$\purple{\underline{\sf{25000\:bricks\:will\:be\:required\:for\:a\:wall\:dimensions.}}}$

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