What should come in place of the question mark (?) in the following questions?
$$\sqrt{?}-11=\sqrt{1521}$$
$$\sqrt{1521}$$ = 39
Let unknown be x.
$$\sqrt{x}$$ = 39+11 = 50
x = 50^2 = 2500
Hence, the correct answer is option A.
Create a FREE account and get: