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Important Questions

Permutations and Combinations

Telangana Open School (TOSS) · Class 12 · Mathematics

Most important questions from Permutations and Combinations for Telangana Open School (TOSS) Class 12 Mathematics board exam 2026. MCQs, short answer, and long answer questions with marks.

57 questions30 flashcards5 concepts

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57 Questions·
multiple choicetrue falsemultiple correct

Sample Questions

1multiple choice
1 marks

What is the value of \( ^nC_0 \)?

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1

There is exactly one way to choose 0 objects from n objects, which is to choose nothing.

2multiple choice
1 marks

How many ways can 3 students be selected from 6 students?

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20

This is \( ^6C_3 = rac{6!}{3!3!} = 20 \).

3multiple choice
1 marks

What is the value of \( ^4P_4 \)?

Show answer

24

\( ^4P_4 = 4! = 24 \).

4multiple choice
1 marks

How many 4-digit numbers can be formed using digits 1 to 4 without repetition?

Show answer

24

All 4 digits used: \( 4! = 24 \).

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Frequently Asked Questions

What are the important topics in Permutations and Combinations for Telangana Open School (TOSS) Class 12 Mathematics?
Permutations and Combinations covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Permutations and Combinations — Telangana Open School (TOSS) Class 12 Mathematics?
Understand the core concepts first, then work through the 57 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Permutations and Combinations?
There are 57 practice questions available for Permutations and Combinations. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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