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What type of pair is formed by the equations (18x+7y=61) and (9x+4y=32)?

Answer and explanation

Correct answer: Consistent and independent

Here, \\(\frac{18}{9}=2\\), whereas \\(\frac{7}{4}\\) is different. Since the ratios of the coefficients of x and y are unequal, the two lines intersect at exactly one point, giving a unique solution. Therefore, the pair is consistent and independent. A consistent dependent pair would require the corresponding coefficient ratios to be equal. Exam tip: if \\(\frac{a_1}{a_2} \ne \frac{b_1}{b_2}\\), a pair of linear equations has a unique solution.

Related tags

Pair Of Linear EquationsConditions For SolvabilityConsistent IndependentUnique SolutionClass 10 MathematicsPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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