What will come in place of the question mark (?) in each of the following questions ?
$$\sqrt{?}-11=\sqrt{1521}$$
Expression : $$\sqrt{?}-11=\sqrt{1521}$$
=> $$\sqrt{x} - 11 = 39$$
=> $$\sqrt{x} = 39 + 11 = 50$$
=> $$x = (50)^2 = 2500$$
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