How many Bricks each measuring 25 cm leangth11.25 cm width,6 cm of height, will be needed to build a wall of 8 m length, 6 m width, and 22.5 m height?

A) 5600

B) 600

C 6400 ✓

D) 7200

Solution:

No of bricks: Volume of wall/ Volume of 1 brick

= 800×600×22.5/22×11.5×6

=6400

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