Question

How many bricks of length 25cm, b 15cm, h 10cm are required to build a wall of length a wall of length 6m, h 2.5m, b 0.5

Answer 1

Answer:

no . of bricks = 2000

Step-by-step explanation:

dimensions of brick = 25 cm × 15 cm × 10 cm .

dimensions of wall = 600 cm × 250 cm × 50 cm.

no . of bricks = volume of wall / volume of  brick

                     = 600 × 250 × 50 / 25 ×15 × 10

                     = 2000

Answer 2

Answer :

2000 bricks

$\sf\underline{Step-by-step \: explanation}$

Step - 1 : Find the volume of the bricks

Volume = l × b × h

Volume = 25 × 15 × 10

Volume =

${3750 \: cm}^{3}$

Step - 2 Find the volume of the wall

Volume = l × b × h

Volume = 6 m × 2.5 m × 0.5 m

To make the terms like,

Volume = 600 cm × 250 cm × 50 cm [1m = 100 cm]

Volume =

${7500000 \: cm}^{ 3}$

Step - 3 Divide the volume of wall with the volume of the brick

Volume of brick ÷ Volume of the wall.

7500000 ÷ 3750

$\tt\dfrac{7500000}{3750}$

After Cancellation...

2000

Hence, $\huge\underline{2000 \: bricks}$ are needed for the wall.