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What will (a) be for (8x+ay=40) and (2x+6y=13) to have no solution?

Answer and explanation

Correct answer: 24

For two linear equations to have no solution, \(\frac{a_1}{a_2}=\frac{b_1}{b_2}\ne\frac{c_1}{c_2}\) must hold. Here, \(\frac{8}{2}=4\) and \(\frac{40}{13}\ne4\). Therefore, \(\frac{a}{6}=4\), giving \(a=24\). Hence, option D is correct. Exam tip: equal ratios of the variable coefficients but an unequal ratio of the constants indicate no solution.

Related tags

Linear EquationsNo SolutionSolvability ConditionsParameter ValueConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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