यदि sum(k=1)^(31)(""^(31)C(k))(""^(31)C(...

यदि `sum_(k=1)^(31)(""^(31)C_(k))(""^(31)C_(k-1))-sum_(k=1)^(30)(""^(30)C_(k))(""^(30)C_(k-1))=(alpha(60!))/((30!)(31!))` है, जहाँ `alpha in R` है, तो `16alpha` का मान बराबर है

A

1411

B

1320

C

1615

D

1855

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