Question

*How many bricks of 30 cm long, 15 cm thick and 10 cm wide bricks will be enough to build a wall 24 m long, 50 cm wide and 3 m high?*

1️⃣ 8000
2️⃣ 1600
3️⃣ 1200
4️⃣ 4000​

Answer 1

Volume of bricks [ v ] = 30 cm × 15 cm × 10 cm = 4500 cm³

Volume of wall [ V ] = ( 24 × 100 ) cm × ( 50 cm ) × ( 3 × 100 ) cm = 36000000 cm³

No.of bricks required : V / v = 36000000/4500 = 8000

Hope this helps , buddy! :D