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For prices of two tickets, the equations (9x+4y=380) and (18x+8y=775) are formed. What type of system is this?

Answer and explanation

Correct answer: Inconsistent, with no solution

Here, \(a_1/a_2=9/18=1/2\) and \(b_1/b_2=4/8=1/2\), but \(c_1/c_2=380/775\neq1/2\). Thus, \(a_1/a_2=b_1/b_2\neq c_1/c_2\), which is the condition for an inconsistent pair of linear equations; the corresponding distinct parallel lines do not intersect, so there is no solution. For option B, all three ratios would have to be equal. Exam tip: Compare the ratios of the coefficients of both variables first, and then compare the ratio of the constant terms.

Related tags

Linear EquationsConditions For SolvabilityInconsistent SystemParallel LinesClass 10Pair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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