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Which statement is correct for (7x+5y=16) and (14x+11y=35)?

Answer and explanation

Correct answer: (7/14 \ne 5/11), so there is a unique solution

For two linear equations, if \(a_1/a_2 \ne b_1/b_2\), the corresponding lines intersect at exactly one point, giving a unique solution. Here, \(7/14=1/2\), whereas \(5/11\ne1/2\); hence \(7/14\ne5/11\), so option B is correct. Options C and D use incorrect equalities among the ratios. Exam tip: first compare \(a_1/a_2\) and \(b_1/b_2\) to determine the number of solutions.

Related tags

Linear EquationsSolvability ConditionsUnique SolutionRatio ComparisonConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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