If (10 imes frac{x}{(x+y)}+ 20 imes frac{y}{(x+y)}=k) and if x is less than y, w

If (10 imes frac{x}{(x+y)}+ 20 imes frac{y}{(x+y)}=k) and if x is less than y, which of the following could be the value of k?

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