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Length of a rectangular hall is 5 meter less than4time is the breadth of the hall with is length of hall and let breadth is b meter |
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Answer» Answer: 2*(l+b) 2*(4b-5+b) 2*(5b-5) 10b-10 10=10b b=10/10 b=1 length=1*4-5 length=-1 area=l*b area=1*-1 area=-1squaremetre |
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