Question

A wall 15m long 30 cm wide and 4m high is made of bricks each measuring 22cm×12.5cm×7.5cm.if 1÷12 of the total volume of the wall consists of mortar how many bricks are there in the wall

Answer 1

Answer:

8000 bricks

Step-by-step explanation:

wall

l= 15 m

b = 30 cm = 0.3 m

h= 4 m

volume = l×b×h

15×0.3×4

18 m^3

mortar

Volume= 1/12 of the total volume of the wall

1×18/12

1.5 m^3

Brick

Volume of bricks = Volume of wall- Volume of Mortar

18-1.5

16.5 m^3

Volume of 1 brick = l×b×h

0.22×0.125 × 0.075

0.0020625 m^3

No. of bricks in the wall= Vol. of bricks / Vol. of each brick

16.5/0.0020625

8000 bricks...

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Answer 2

Answer:

hope it helps. above is your answer in the attachment