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For prices of two tickets, the equations (4x+3y=120) and (8x+6y=250) are formed. What type of system is this?

Answer and explanation

Correct answer: Inconsistent

Here, \(\frac{4}{8}=\frac{3}{6}=\frac{1}{2}\), but \(\frac{120}{250}=\frac{12}{25}\), which is not equal to \(\frac{1}{2}\). Thus, \(\frac{a_1}{a_2}=\frac{b_1}{b_2}\ne\frac{c_1}{c_2}\). The two lines are therefore parallel and have no common solution, so the system is inconsistent. Exam tip: Compare these three ratios to identify a ‘no solution’ case quickly.

Related tags

Linear EquationsConditions For SolvabilityInconsistent SystemPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

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