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What is the correct solution status for the equations (6x-4y+11=0) and (15x-10y+28=0)?

Answer and explanation

Correct answer: No solution

Here, \(a_1=6, b_1=-4, c_1=11\) and \(a_2=15, b_2=-10, c_2=28\). We have \(\frac{a_1}{a_2}=\frac{6}{15}=\frac{2}{5}\) and \(\frac{b_1}{b_2}=\frac{-4}{-10}=\frac{2}{5}\), but \(\frac{c_1}{c_2}=\frac{11}{28}\), which is not equal to \(\frac{2}{5}\). Thus, the two lines are distinct and parallel, so they do not intersect. Therefore, the pair has no solution. Exam tip: If \(\frac{a_1}{a_2}=\frac{b_1}{b_2}\ne\frac{c_1}{c_2}\), the lines are parallel and the pair has no solution.

Related tags

Pair Of Linear EquationsConditions For SolvabilityParallel LinesNo SolutionClass 10 MathematicsPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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