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Subjects

Mathematics

Conditions for solvability

In this Class 10 Mathematics topic, students learn how to determine whether a pair of linear equations in two variables has a solution. They compare the ratios of the coefficients and constants to identify the three possibilities: a unique solution, infinitely many solutions, or no solution. The topic connects algebraic conditions with the graphical meaning of intersecting, coincident, and parallel lines, helping students classify equation pairs accurately and understand when they are consistent or inconsistent.

Medium · Level 2 · 25 questions

TOPIC PRACTICE

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25 questions

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  1. Distinct parallel
  2. Intersecting
  3. Coincident
  4. Perpendicular
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  1. It is consistent and independent
  2. It is consistent and dependent
  3. It is inconsistent
  4. It has infinitely many solutions
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  1. 1
  2. 2
  3. 3
  4. 4
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  1. \(q=4\)
  2. \(q\ne4\)
  3. \(q=10\)
  4. \(q=2\)
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  1. (8)
  2. (10)
  3. (12)
  4. (14)
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  1. 10
  2. 12
  3. 14
  4. 15
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  1. Lines intersect at one point
  2. Lines are coincident
  3. Lines are distinct parallel
  4. Lines are perpendicular
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  1. Same line
  2. Two distinct parallel lines
  3. Lines intersecting at one point
  4. No line
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  1. Inconsistent
  2. Consistent and independent
  3. Consistent and dependent
  4. No solution
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  1. One unique solution
  2. No solution
  3. Infinitely many solutions
  4. Coincident lines
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  1. No solution
  2. Infinitely many solutions
  3. One unique solution
  4. Not determined
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  1. \(\frac{2}{6}=\frac{3}{9}\ne\frac{-11}{-33}\)
  2. \(\frac{2}{6}\ne\frac{3}{9}\)
  3. \(\frac{2}{6}=\frac{3}{9}=\frac{-11}{-33}\)
  4. \(\frac{2}{6}=\frac{-11}{-33}\ne\frac{3}{9}\)
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  1. 4/8 = (−5)/(−10) ≠ 7/9
  2. 4/8 ≠ (−5)/(−10)
  3. 4/8 = (−5)/(−10) = 7/9
  4. 4/8 = 7/9 ≠ (−5)/(−10)
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  1. No solution
  2. Infinitely many solutions
  3. One unique solution
  4. Coincident lines
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  1. 2
  2. 3
  3. 4
  4. 5
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  1. 2
  2. 3
  3. 4
  4. 5
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  1. \(p=12\)
  2. \(p\ne12\)
  3. \(p=3\)
  4. \(p=8\)
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  1. 24
  2. 28
  3. 30
  4. 32
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  1. t = 9
  2. t ≠ 9
  3. t = 18
  4. t = 6
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  1. There is one unique solution
  2. There is no solution
  3. There are infinitely many solutions
  4. The two lines are perpendicular
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  1. All three ratios are equal
  2. The first two ratios are equal, but the ratio of the constant terms is different
  3. The first two ratios are different
  4. The lines intersect at one point
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  1. (7/2=3/1), so infinitely many solutions
  2. (7/2=3/1), so no solution
  3. (7/2 \ne 3/1), so one unique solution
  4. (7/2=19/6), so coincident
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  1. Consistent and independent
  2. Consistent and dependent
  3. Inconsistent
  4. The pair is non-linear
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  1. Inconsistent
  2. Consistent and dependent
  3. Consistent and independent
  4. Coincident lines
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  1. No solution
  2. One unique solution
  3. Infinitely many solutions
  4. Two solutions

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