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Solving the hall equation gives x = 12 or x = minus 12.5. The negative value is rejected because:
AA breadth cannot be negative
BTwelve is the bigger number
CBoth values are wrong
DFractions are never allowed
Answer & Solution
Correct answer: A. A breadth cannot be negative
1. x stands for the breadth of a hall.
2. A length cannot be below zero.
3. So the negative root is dropped.
_Source: NCERT Class 10 Mathematics, Chapter 4, Quadratic Equations._
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