How many bricks each 25 cm.Long ,16 cm wide and 7.5 cm thick will be required to built a terrace 5 m long , 3 m broad , and 80 cm high?
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500×300×80÷16×7.5×25=4000
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Answer:
Step-by-step explanation:
BRICK
length = 25cm
width = 16cm
height = 7.5cm
area = lxwxh
area = 25x16x7.5 = 3000
area of brick is 3000cm
TERRACE
length = 5m = 500cm
width = 3m = 300cm
height = 80cm
area = 500x300x80 = 12000000
no.of bricks required to built the terrace is equal to area of terrace by area of brick
no.of bricks = 12000000/3000=4000
HENCE 4000 bricks required to built the terrace
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