Class 11 Mathematics Permutations and Combinations Derivations of formulas and their connections Hard Level 65

(6) digits से (4)-digit numbers बनते हैं और repetition allowed है। Formula \(6^4\) क्यों है?

(4)-digit numbers are formed from (6) digits and repetition is allowed. Why is the formula \(6^4\)?

Explanation opens after your attempt
Correct Answer

A. हर position पर (6) choices independent हैंEach position has (6) independent choices

Step 1

Concept

Choices do not decrease when repetition is allowed. In exams use the power formula when repetition is allowed.

Step 2

Why this answer is correct

The correct answer is A. हर position पर (6) choices independent हैं / Each position has (6) independent choices. Choices do not decrease when repetition is allowed. In exams use the power formula when repetition is allowed.

Step 3

Exam Tip

Repetition allowed होने से choices कम नहीं होतीं। परीक्षा में allowed repetition में power formula use करें।

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(6) digits से (4)-digit numbers बनते हैं और repetition allowed है। Formula \(6^4\) क्यों है? / (4)-digit numbers are formed from (6) digits and repetition is allowed. Why is the formula \(6^4\)?

Correct Answer: A. हर position पर (6) choices independent हैं / Each position has (6) independent choices. Explanation: Repetition allowed होने से choices कम नहीं होतीं। परीक्षा में allowed repetition में power formula use करें। / Choices do not decrease when repetition is allowed. In exams use the power formula when repetition is allowed.

Which concept should I revise for this Mathematics MCQ?

Choices do not decrease when repetition is allowed. In exams use the power formula when repetition is allowed.

What exam hint can help solve this Mathematics question?

Repetition allowed होने से choices कम नहीं होतीं। परीक्षा में allowed repetition में power formula use करें।