The perimeter of floor a room is 17m and length 5m. Find i)width of the room, ii) floor area, iii) cost of flooring the room with square tilesof side 25cm at the rate of rupees 850 per 100 tiles
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Answer:
i) 3.5 m
ii) 17.5 m²
iii) ₹ 595
Step-by-step explanation:
Perimeter of floor = 17 m
Length = 5 m
Breadth = b
Perimeter = 2(l + b)
17 = 2(5 + b)
17/2 = 5 + b
8.5 - 5 = b
b = 3.5
Area of floor = l x b = 5 x 3.5 = 17.5 m²
Side of square tile = 25 cm = 0.25 m
Number of tile used for flooring = Area of floor/Area of tiles
= 17.5 / 0.25
= 70
Rate of tilling = ₹ 850/100 tiles
Cost of tilling = (850/100) x 70
= 85 x 7
= ₹ 595
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