यदि \(A=\{1,2,3,4,5,6\}\) और \(B=\{0,1\}\) हों, तो (A) से (B) में ऐसे कितने फलन हैं जिनमें ठीक (3) इनपुटों की छवि (1) हो?

If \(A=\{1,2,3,4,5,6\}\) and \(B=\{0,1\}\), how many functions from (A) to (B) have exactly (3) inputs with image (1)?

Explanation opens after your attempt
Correct Answer

C. (20)

Step 1

Concept

Exactly three of the six inputs must be mapped to (1). The number is \(\binom{6}{3}=20\).

Step 2

Why this answer is correct

The correct answer is C. (20). Exactly three of the six inputs must be mapped to (1). The number is \(\binom{6}{3}=20\).

Step 3

Exam Tip

छह इनपुटों में से ठीक तीन को (1) पर भेजना है। संख्या \(\binom{6}{3}=20\) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4,5,6\}\) और \(B=\{0,1\}\) हों, तो (A) से (B) में ऐसे कितने फलन हैं जिनमें ठीक (3) इनपुटों की छवि (1) हो? / If \(A=\{1,2,3,4,5,6\}\) and \(B=\{0,1\}\), how many functions from (A) to (B) have exactly (3) inputs with image (1)?

Correct Answer: C. (20). Explanation: छह इनपुटों में से ठीक तीन को (1) पर भेजना है। संख्या \(\binom{6}{3}=20\) है। / Exactly three of the six inputs must be mapped to (1). The number is \(\binom{6}{3}=20\).

Which concept should I revise for this Mathematics MCQ?

Exactly three of the six inputs must be mapped to (1). The number is \(\binom{6}{3}=20\).

What exam hint can help solve this Mathematics question?

छह इनपुटों में से ठीक तीन को (1) पर भेजना है। संख्या \(\binom{6}{3}=20\) है।