the area of four wall of a ro is 300 m square. its lenght and height are 15 m and 6m fing its breadth .
pls help
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1
Answer:
10
Step-by-step explanation:
Area of 4 wall = 2h (l+b)
300 = 2 (6) (15 + b)
300 = 12 (15+b)
300/12 = 15 + b
25 = 15 + b
25 - 15 = b
10 = b
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