(7) अलग-अलग पुरस्कारों को (5) विद्यार्थियों में एक-एक देकर कितने तरीकों से बांटा जा सकता है?
In how many ways can (7) distinct prizes be distributed one each among (5) students?
Explanation opens after your attempt
A. (2520)
Concept
The (5) students receive one prize each from (7) prizes in an ordered way, so \(^{7}P_5=2520\). In exams, distinct recipients imply permutation.
Why this answer is correct
The correct answer is A. (2520). The (5) students receive one prize each from (7) prizes in an ordered way, so \(^{7}P_5=2520\). In exams, distinct recipients imply permutation.
Exam Tip
(5) विद्यार्थियों को (7) पुरस्कारों में से क्रमित रूप से एक-एक मिलेगा, इसलिए \(^{7}P_5=2520\)। परीक्षा में recipients अलग हों तो permutation लें।
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