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B
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Difficulty—
A certain number of persons can dig a trench \(100\,\text{m}\) long, \(50\,\text{m}\) broad and \(10\,\text{m}\) deep in \(10\) days. The same number of persons can dig another trench \(20\,\text{m}\) broad and \(15\,\text{m}\) deep in \(30\) days. The length of the second trench is
A. \(400\,\text{m}\)
B. \(500\,\text{m}\)
C. \(800\,\text{m}\)
D. \(900\,\text{m}\)
E. \(950\,\text{m}\)
The OA is B
A. \(400\,\text{m}\)
B. \(500\,\text{m}\)
C. \(800\,\text{m}\)
D. \(900\,\text{m}\)
E. \(950\,\text{m}\)
The OA is B
