GATE CE · Quantitative Aptitude

GATE CE Combinatorics Counting Questions with Answers and Solutions

Solve real combinatorics counting questions with step-by-step solutions — free preview, no login required.

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GATE CE Combinatorics Counting practice

Topic-wise practice1 questions 5 min

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In how many ways can cells in

a^{3} × 3

grid be shaded, such that each row and each column have exactly one shaded cell? An example of one valid shading is shown.

Choose one answer to reveal the solution.

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GATE CE Combinatorics Counting practice FAQ

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Signup unlocks the full GATE CE Combinatorics Counting topic test, saved attempts, performance analysis, Maya AI doubt-chat, friend challenges and a personalised study plan.

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Yes. Every question here carries a worked solution so you understand the method, not just the final answer.

Prepare together, not alone

GATE CE Combinatorics Counting practice

What visitors can use on this page

GATE CE Combinatorics Counting practice FAQ

Prepare together, not alone

GATE CE Combinatorics Counting practice

What visitors can use on this page

GATE CE Combinatorics Counting practice FAQ