Question

How many bricks each 25 cm by 15 cm by 8 cm, are required for a wall 32 m long, 3

m high and 40 cm thick? Also calculate the cost of building the wall if each brick

costs Rs 8 and for every 1000 tiles Rs 500 is to be paid as labour charge​

Answer 1

Step-by-step explanation:

no. of bricks = vol. of wall/vol. of 1 brick

= 32m×3m×40cm/25cm×15cm×8cm

= 3200×300×40/25×15×8

= 38400000/3000

= 12800

cost of 1bricks = 8

cost of 12800 bricks = 12800×8

= 102400

labour cost of 1000 tiles = 500

labour cost of 1 tiles= 500/1000

labour cost of 1 tiles= 1/2

labour cost of 12800 tiles= 1/2(12800)

labour cost of 12800 tiles = 6400

total cost of building= 12800+6400

total cost of building= 19200

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