Determinants Quiz
Practice quiz on Determinants (Mathematics). 5 questions.
About This Quiz
Determinants Quiz — Questions with Solutions
All 5 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.
Q1.Determinant of 2x2 matrix [[a,b],[c,d]]?
- A.ad - bc
- B.ad + bc
- C.ab - cd
- D.ac - bd
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Answer: A. ad - bc
Cross multiplication.
Q2.If determinant = 0?
- A.Matrix is singular (no inverse)
- B.Matrix is regular
- C.Inverse exists
- D.Identity matrix
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Answer: A. Matrix is singular (no inverse)
Cannot find inverse.
Q3.Determinant is a?
- A.Scalar value from matrix
- B.Matrix
- C.Vector
- D.Equation
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Answer: A. Scalar value from matrix
Single number result.
Q4.Cramers rule uses?
- A.Determinants to solve linear equations
- B.Only addition
- C.Only graphs
- D.Only guessing
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Answer: A. Determinants to solve linear equations
Algebraic method.
Q5.3x3 determinant expansion?
- A.Along any row or column using cofactors
- B.Only first row
- C.Only diagonal
- D.Random
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Answer: A. Along any row or column using cofactors
Cofactor expansion.
Frequently Asked Questions
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Determinants Quiz runs on a 1-minute timer in real exam-style conditions. The clock starts the moment you click Start, mirroring the time pressure of the actual exam.
Are detailed solutions provided?
Yes. Every question on Determinants Quiz ships with a complete step-by-step solution, the underlying concept, and (where applicable) shortcut tricks. You can also discuss any question with the AajExam community.
Can I attempt Determinants Quiz multiple times?
Yes. You can attempt this quiz as many times as you like. Each attempt is recorded separately so you can track improvement in score, accuracy and time-management.
Which government exams does this quiz prepare me for?
Determinants questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.