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basic_counting MCQ Questions for Class 11

basic_counting se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

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2 questions tagged with basic_counting.

Question 1/2 Easy Mathematics Permutations and Combinations Derivations of formulas and their connections Class 11 Level 66

यदि (5) red pens या (6) blue pens में से एक pen चुनना हो तो कौन-सा सिद्धांत लगेगा?

If one pen is to be chosen from (5) red pens or (6) blue pens which principle is used?

Explanation opens after your attempt
Correct Answer

B. जोड़ सिद्धांतAddition principle

Step 1

Concept

This is an or situation so there are (5+6) choices. In exams look for the addition principle when the word or appears.

Step 2

Why this answer is correct

The correct answer is B. जोड़ सिद्धांत / Addition principle. This is an or situation so there are (5+6) choices. In exams look for the addition principle when the word or appears.

Step 3

Exam Tip

यह या वाली स्थिति है इसलिए (5+6) choices मिलते हैं। परीक्षा में or शब्द पर addition principle देखें।

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Question 2/2 Easy Mathematics Permutations and Combinations Derivations of formulas and their connections Class 11 Level 66

यदि (3) shirts और (4) pants में से outfit बनाना हो तो कौन-सा सिद्धांत formula connection दिखाता है?

If an outfit is made from (3) shirts and (4) pants which principle shows the formula connection?

Explanation opens after your attempt
Correct Answer

B. गुणन सिद्धांतMultiplication principle

Step 1

Concept

Each shirt can pair with (4) pants so there are \(3\times4\) choices. In exams multiply when independent choices are needed together.

Step 2

Why this answer is correct

The correct answer is B. गुणन सिद्धांत / Multiplication principle. Each shirt can pair with (4) pants so there are \(3\times4\) choices. In exams multiply when independent choices are needed together.

Step 3

Exam Tip

हर shirt के साथ (4) pants जुड़ सकते हैं इसलिए \(3\times4\) choices हैं। परीक्षा में independent choices साथ चाहिए तो multiply करें।

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