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 400​

Answer 1

Answer:

option 1 8000

Step-by-step explanation:

volume of brick = l*b*h

volume of brick = 30*10*15

volume of brick = 300*15

volume of brick = 4500cm²

1m = 100cm

24m = 2400cm

3m = 300cm

volume of wall = l*b*h

volume of wall = 2400*50*300

volume of wall = 2400*15000

volume of wall = 36000000cm²

now convert both the volume in m

1cm² = 1/100m²

4500cm² = 4500/100 m²

= 45m²

36000000cm² = 36000000/100m²

= 360000m²

volume of wall / volume of brick = number of bricks

360000/45 = 8000m²

Answer 2

Answer:

1

Step-by-step explanation:

*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

1️⃣ 8000