If $$11\sqrt{n}=\sqrt{112}\ +\ \sqrt{343}$$, then the value of n is
Expression : $$11\sqrt{n}=\sqrt{112}\ +\ \sqrt{343}$$
=>Â $$11\sqrt{n}=\sqrt{16\times7}\ +\ \sqrt{7\times7\times7}$$
=>Â $$11\sqrt{n}=4\sqrt{7}\ +\ 7\sqrt{7}$$
=> $$11\sqrt{n}=11\sqrt7$$
=> $$\sqrt{n}=\sqrt7$$
=> $$n=7$$
=> Ans - (B)
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