(6) अलग-अलग मिठाइयों में से (3) मिठाइयां चुननी हैं और एक विशेष मिठाई अवश्य हो। कितने तरीके हैं?

From (6) different sweets, (3) sweets are to be selected and one special sweet must be included. How many ways are there?

Explanation opens after your attempt
Correct Answer

B. (10)

Step 1

Concept

The special sweet is already selected. Choose the remaining (2) sweets from (5) in \(\binom{5}{2}=10\) ways.

Step 2

Why this answer is correct

The correct answer is B. (10). The special sweet is already selected. Choose the remaining (2) sweets from (5) in \(\binom{5}{2}=10\) ways.

Step 3

Exam Tip

विशेष मिठाई पहले से चुनी है। बाकी (2) मिठाइयां (5) में से \(\binom{5}{2}=10\) तरीकों से चुनेंगे।

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Mathematics Answer, Explanation and Revision Hints

(6) अलग-अलग मिठाइयों में से (3) मिठाइयां चुननी हैं और एक विशेष मिठाई अवश्य हो। कितने तरीके हैं? / From (6) different sweets, (3) sweets are to be selected and one special sweet must be included. How many ways are there?

Correct Answer: B. (10). Explanation: विशेष मिठाई पहले से चुनी है। बाकी (2) मिठाइयां (5) में से \(\binom{5}{2}=10\) तरीकों से चुनेंगे। / The special sweet is already selected. Choose the remaining (2) sweets from (5) in \(\binom{5}{2}=10\) ways.

Which concept should I revise for this Mathematics MCQ?

The special sweet is already selected. Choose the remaining (2) sweets from (5) in \(\binom{5}{2}=10\) ways.

What exam hint can help solve this Mathematics question?

विशेष मिठाई पहले से चुनी है। बाकी (2) मिठाइयां (5) में से \(\binom{5}{2}=10\) तरीकों से चुनेंगे।