Question

50. How many bricks will be required for a wall 8 m long, 6 m high and 22-5 cm thick, if each brick measures 25 em * 11.25 cm x 6 em ? (A) 640 (B) 1380 (C) 6400 (D) 7600​

Answer 1

Answer:

B

Step-by-step explanation:

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Answer 2

Answer:

< 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.. (^^)

I hope this may help you ☺️