Questions

December 2021 0 1 Report
1. If C(n,r)=4 and P(n,r)=24, find n and r. 2. If C(n, r) =5 and P(n, r)=120, find n and r.

3. If C(n,r)=120 and P(n,r)=720, find n and r. ​

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