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" If "^(n+1)C(r+1):^(n)C(r):^(n-1)C(r-1)...

`" If "^(n+1)C_(r+1):^(n)C_(r):^(n-1)C_(r-1)=11:6:3," then "nr=`

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If .^(n+1)C_(r+1):^(n)C_(r):^(n-1)C_(r-1)=11:6:3 , find the values of n and r.

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