How to use the Discrete Mathematics MCQ Quiz
- 1. Choose the length10 random Discrete mathematics questions, or all 25. Untick shuffle for a fixed order.
- 2. AnswerPick an option and see straight away whether it's right, with a one-line reason.
- 3. See your scoreFinish to get your score and a review of every question with the correct answer.
What the quiz covers
Discrete mathematics underpins data structures, algorithms and databases, and it's a regular source of GATE and university exam marks. The 25 questions are grouped into 10 areas, shown above each question: Sets, Logic, Relations, Functions, Combinatorics, Graphs, Number theory, Recurrences, Proofs, Algebra.
A sample question explained
"How many edges does a complete graph K₆ have?" The answer is 15. n(n − 1)/2. The handshaking lemma (degree sum = 2 × edges) solves many graph questions quickly.
More questions you'll meet
A few of the other Discrete mathematics questions in the bank:
- The contrapositive of p → q is
- A relation that is reflexive, symmetric and transitive is
- How many functions are there from a 3-element set to a 2-element set?
- How many ways can 5 people sit in a row?
- A tree with n vertices has how many edges?
- A planar graph satisfies Euler's formula
- The recurrence aₙ = 2aₙ₋₁ with a₀ = 1 gives
Study tips
- Work each counting question on paper before choosing an option.
- Learn the formulas for edges in complete graphs and trees by heart.
- Aim for at least 20 out of 25 on two separate attempts before you treat Discrete mathematics as revised; one lucky score can hide gaps.
Questions and options are shuffled on each attempt, so a retake is a fresh test. The Discrete mathematics questions were written by Uncodemy for practice; they aren't copied from any exam or company test.
Frequently asked questions
Is a calculator needed?
No. All numbers are small enough to work by hand.
Is this GATE level?
It's at the level of GATE one-mark questions.
Is the Discrete mathematics MCQ quiz free?
Yes. Every question in the Discrete mathematics MCQ quiz can be answered without signing up. When you finish your first round, we ask once for your name and WhatsApp number to show your score; after that the Discrete mathematics MCQ quiz and every other Uncodemy tool open straight away.