The sum `sum_(i=0)^(m)""^(10)C_(i)xx""^(20)C_(m-i)("where " ""^(p)C_(q)=0" if "pltq)`
is maximum, when m is

The sum sum_(i=0)^(m)((10),(i))((20),(m-i)) (where ((p)/(q))=0 , if pltq ) is maximum, when m is:

The sum sum_(i=0)^m ((10),(i))((20),(m-1)) , where ((p),(q))=0 if p lt q , is maximum when m is equal to (A) 5 (B) 10 (C) 15 (D) 20

The sum sum_(i=0)^m ((10)c,(i))((20),(m-1)) , where ((p),(q))=0 if p lt q , is maximum when m is equal to (A) 5 (B) 10 (C) 15 (D) 20

The sum sum_(m)^(i=0) ({:(10),(i):})({:(20),(m-i):}) , (where ({:(p),(q):})= 0 , if p lt q ) is maximum when 'm' is

sum_(r=0)^(m)( n+r )C_(n)=

The sum sum_(r=0)^(m) ""^(10)C_(r) xx""^(20)C_(m -r) is maximum . When m=

The sum underset(i=0)overset(3m)(sum)((20),(3m-i)) , where ((p),(q))=0 if p lt q is maximum then m is_______.