How many bricks, each measuring 25 cm × 11.25 cm × 6 cm, will be needed to build a wall 8 m × 6 m × 22.5 cm ? · ABC26GN4805
Subject: General Aptitude · Chapter: Volume and Surface Area · Exam: M.A.T. 2008
How many bricks, each measuring $25 \mathrm{cm} \times 11.25$ cm × 6 cm, will be needed to build a wall 8 m × 6 $\mathrm{m} \times 22.5 \mathrm{cm}$ ?
(a)5600
(b)6000
(c)6400
(d)7200
Answer
Explanation
Number of bricks = $$\frac{\text { Volume of the wall }}{\text { Volume of } 1 \text { brick }}=\left(\frac{800 \times 600 \times 22.5}{25 \times 11.25 \times 6}\right)=6400 .$$
Explanation as extracted from the printed page; notation may be imperfect.
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