What will come in place of the question mark (?) in the following questions ?
3.05% of 1200+6.4% of 800=?
$$ 14 \times 4.5-7.4 \times 3.5=? $$
$$ 4\frac{2}{5} \times 3\frac{1}{3}-?= 5\frac{1}{3} $$
$$7995 \div 123 \div 5=?$$
62.18+169.35+3046.81=?
$$\sqrt{?}+19^{2}=21^{2}$$
$$6\frac{1}{2}+5\frac{1}{4} \times 1\frac{3}{7}=?$$
$$\frac{3}{5} of \frac{5}{7} of \frac{2}{9} of 630 ?$$
125% of 200+36% of 350=?
$$\frac{28 \times 5-14 \times 4}{8^{2}+\sqrt{225}+(14)^{2}}=?$$