Question

Find the number of bricks, each measuring 24 cm x 12 cm x 8 cm, required to construct a wall 24 m long, 8m high and 60 cm thick, if 10% of the wall is filled with mortar?

Answer 1

Answer:

The area of brick = 24×12×8 cm³

Area of wall = 2400×800×6000cm³

Area of wall occupied by bricks =90% of 2400×800×6000

                                             =2400×800×600×9

No.of bricks = Area of wall occupied by bricks ÷ Area of bricks

                 = (2400×800×600×9) ÷ (24×12×8)

                 =4000000 bricks

Step-by-step explanation: