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| Question: In a rectangle length = twice that of breadth , cost of grounding is 60 rupees per meter, Total cost is 3600/- what is the length in meter?
Answer: 20 |
| August 08, 2005 06:49:26 |
#1 |
| Srinivas murthy |
Member Since: Visitor Total Comments: N/A |
RE: In a rectangle length = twice that of breadth , cost of gr
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Total cost = 3600
cost per sq meter = 60
Area of rectangle = 3600/60 = 60 sq meter
Let
length = L
Bredth = B
Area of rectangle = 2*(lenght * bredth)
Area = 2(B * 2B) = 60
6B = 60
B=60/6
B=10
L=2B
L=20 |
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