a room is 12 m by 10 M find the cost of covering it's floor with bricks 20 CM by 6 CM if its cost of 1000 bricks is 300
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Given Data
room size = 12m × 10m
brick size = 20cm × 6cm
cost for 1000 brick = 300
solution
area of the room = 12 × 10
= 120 m^2
= 120 × 100 [ for convert m in to cm ]
= 120,00 cm^2
area of brick = 20 × 6
= 120cm^2
no : of brick need foe to cover the floor = 12000÷120
= 100
cost for one brick = 300 ÷ 1000
= 0.3₹
cost for 120 brick = 100 × 0.3
30₹
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