(7) विषयों में से अधिकतम (1) विषय चुनने के कितने तरीके हैं?

In how many ways can at most (1) subject be selected from (7) subjects?

Explanation opens after your attempt
Correct Answer

B. (8)

Step 1

Concept

At most (1) means selecting (0) or (1). Hence \(\binom{7}{0}+\binom{7}{1}=1+7=8\).

Step 2

Why this answer is correct

The correct answer is B. (8). At most (1) means selecting (0) or (1). Hence \(\binom{7}{0}+\binom{7}{1}=1+7=8\).

Step 3

Exam Tip

अधिकतम (1) का अर्थ (0) या (1) चयन है। इसलिए \(\binom{7}{0}+\binom{7}{1}=1+7=8\) है।

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Mathematics Answer, Explanation and Revision Hints

(7) विषयों में से अधिकतम (1) विषय चुनने के कितने तरीके हैं? / In how many ways can at most (1) subject be selected from (7) subjects?

Correct Answer: B. (8). Explanation: अधिकतम (1) का अर्थ (0) या (1) चयन है। इसलिए \(\binom{7}{0}+\binom{7}{1}=1+7=8\) है। / At most (1) means selecting (0) or (1). Hence \(\binom{7}{0}+\binom{7}{1}=1+7=8\).

Which concept should I revise for this Mathematics MCQ?

At most (1) means selecting (0) or (1). Hence \(\binom{7}{0}+\binom{7}{1}=1+7=8\).

What exam hint can help solve this Mathematics question?

अधिकतम (1) का अर्थ (0) या (1) चयन है। इसलिए \(\binom{7}{0}+\binom{7}{1}=1+7=8\) है।