Question

If n≤8 and nCr+1=20 and n−1Cr=10n≤8 and nCr+1=20 and n−1Cr=10 , then ‘n’ is equal to​

Answer 1

Step-by-step explanation:

If n≤8 and nCr+1=20 and n−1Cr=10n≤8 and nCr+1=20 and n−1Cr=10