Question

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?
A.5600
B.6000
C.6400
D.7200

Answer 1

$<b>Heya mate. (^_-). Solution below.$
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♦ Given dimensions of wall
= 8 m × 6 m × 22.5 cm
= 800 cm × 600 cm × 22.5 cm


•°• Volume of wall,
= l × b × h
= 800 cm × 600 cm × 22.5 cm
= 10800000 cm³




♦ Given dimensions of one brick
= 25 cm × 11.25 cm × 6 cm


•°• Volume of one brick,
= l × b × h
= 25 cm × 11.25 cm × 6 cm
= 1687.5 cm³




♠ Then, number of bricks required,

= Volume of wall ÷ Volume of one brick

= 10800000 ÷ 1687.5

= 6400



★ Therefore, your answer is 6400 bricks, i.e. Option C.
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Thank you.. (^^)

Answer 2

Answer:hello guys I know the answer

Step-by-step explanation:1.The dimensions given are 25cm×11.5cm×6cm. This is wall dimemsions.

Now, let us find the dimensions of wall

Dimensions are 8m×6m×22.5cm.

Now 8m=800cm (converted into cm)

6m=600cm (into cm)

Now multiply 800cm×600cm×22.5cm

I. E volume =l×b×have

Answer is 10800000cm3

Now,let us find volume of 1 brick

25cm×11.25cm×6cm

Answer is 1687.5 cm3

Now divide volume of wall by volume of 1 brick

10800000÷1687.5

Answer is 64000

Hope it helps u

Plz mark it as brainliest