A room 8 m long, 6 m high and 22.5 cm thick is made up of bricks, each measuring 25 cm × 11.25 cm × 6 cm. The number of bricks required is.
Solution
Correct Answer: Option B
এখানে,
দেয়ালের আয়তন
= (8×100) × (6×100) x 22.5
= 10800000 cm3
ইটের আয়তন = 25 × 11.25 × 6 = 1687.5 cm3
ইটের সংখ্যা =10800000/ 1687.5
= 6400
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