(8) अलग-अलग प्रश्नों में से (6) प्रश्नों को क्रम से हल करने के कितने तरीके हैं?
In how many ways can (6) questions be attempted in order from (8) distinct questions?
Explanation opens after your attempt
A. (20160)
Concept
(6) questions are selected and attempted in order, so \(^{8}P_6=20160\). In exams, use permutation if the order of attempt differs.
Why this answer is correct
The correct answer is A. (20160). (6) questions are selected and attempted in order, so \(^{8}P_6=20160\). In exams, use permutation if the order of attempt differs.
Exam Tip
(6) प्रश्न चुनकर क्रम से हल करने हैं, इसलिए \(^{8}P_6=20160\)। परीक्षा में order of attempt अलग हो तो permutation लें।
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