A gym coach coach must select 11 seniors to play on football teme .if he can make his selection in 12.376 ways.how many seniors are eligible to play?
**Solution:**
So we have
Cx11=11!∗(x−11!)x!=12376(x−11!)x!=12376∗11!(x−11!)x∗(x−1)∗(x−2)∗(x−3)∗(x−4)∗(x−5)∗(x−6)∗(x−7)∗(x−8)∗(x−9)∗(x−10)∗(x−11)!x∗(x−1)∗(x−2)∗(x−3)∗(x−4)∗(x−5)∗(x−6)∗(x−7)∗(x−8)∗(x−9)∗(x−10)=12376∗11!x=17
Answer:17 seniors.