(15) प्रश्नों में से (5) प्रश्न चुनने हैं लेकिन (3) विशेष प्रश्न नहीं चुनने हैं। कितने तरीके हैं?
From (15) questions, (5) questions are to be selected, but (3) special questions must not be selected. How many ways are there?
Explanation opens after your attempt
B. (792)
Concept
After removing (3) questions, (12) questions remain. Therefore there are \(\binom{12}{5}=792\) ways.
Why this answer is correct
The correct answer is B. (792). After removing (3) questions, (12) questions remain. Therefore there are \(\binom{12}{5}=792\) ways.
Exam Tip
(3) प्रश्न हटाने पर (12) प्रश्न बचते हैं। इसलिए \(\binom{12}{5}=792\) तरीके हैं।
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