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Choose the correct solution status for (10x+5y=30) and (2x+y=7).

Answer and explanation

Correct answer: No solution

Comparing the coefficients, \(10/2=5\) and \(5/1=5\), but the ratio of the constants is \(30/7\), which is not 5. Thus, \(a_1/a_2=b_1/b_2\ne c_1/c_2\), so the two lines are distinct and parallel and the pair has no solution. Infinitely many solutions would require all three ratios to be equal. Exam tip: Apply this ratio test directly to determine the solution status quickly.

Related tags

Pair Of Linear EquationsNo SolutionParallel LinesSolvability ConditionsClass 10 MathematicsConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematics

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