Instructions: What will come in place of question mark (?) in the following questions?
$$\sqrt{11449}$$ x $$\sqrt{6241}$$ - (54)2 - (74)2 = $$\sqrt{?}$$
$$\sqrt{?}$$ = [107 x 79] - 2916 - 5476
= 8453 - 2916 - 5476 = 61
$$\sqrt{?}$$= (61)2 = 3721
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