Simplification

What approximate value will come in place of question-mark (?) in the following questions ? (You are not expected to calculate the exact value)

$\left(\frac{24}{9}\right) 2 \times \left(\frac{399}{39}\right)÷\left(\frac{41}{899}\right)= ?$

In each of these questions an equation is given with a questions mark (?) in place of the correct figure on the right hand side which satisfies the equality. Based on the values on the left hand side and the symbol of equality given, you have to decide which of the following figures will satisfy the equality and thus come in place of the question mark.
Symbol Stands for
> Greater than
= Equal to
< Lesser than
≥ Either greater than or equal to
≤ Either Lesser than or equal to

$$-[(\sqrt { 676 } -\sqrt { 196 } )\times (-1.7)]=?$$

What should come in place of the question mark $(?)$ in the following:

$(833.25 – 384.45) ÷ 24 = ?$

If the following numbers are arranged in descending order then which will be the middle digit of the middle term ?
$279, 369, 425, 335, 625, 415, 545$

What value will come in place of question mark (?) in the question?

$9^2+{58}^2-{17}^2+26=?$

What value will come in place of the question mark $(?)$ in the following questions:

$\sqrt[3]{912673}=?$

What value will come in place of the question mark $(?)$ in the following question? 

$21(5\% \text{of} 20 +10\%\text{ of} 68) = ?$

What value will come in place of the question mark $(?)$ in the following:

$40\% \text{of} 6.5 +\hspace{0.17em}\frac{2}{3}\text{of} 8.4 = ? -5.6$

What value will come in place of question mark (?) in the following question?

$9.99 \times 99.9 \times 99+99 =?$

What value will come in place of the question mark $(?)$ in the following:

$3\frac{2}{7}\times 1\frac{10}{11}\times \frac{9}{23}=?$

What will come in place of the question mark $(?)$ in the following questions? (You are not expected to calculate exact values)
$(19.97\% \mathrm{of} 781) + ? + (30\% \mathrm{of} 87) = 252$

What should come in place of question mark (?) in the following question?

Find the value of $x$:

$25\% \mathrm{of} 764 + 35\% \mathrm{of} 460 – 65\% \mathrm{of} 440=x$

What should come in place of question mark$(?)$ in the following questions?

$(?{)}^2\times (12{)}^2÷(48{)}^2=81$

What should come in place of question mark $(?)$ in the following questions?
$726.34 + 888.12 - ? = 1001.88$

What should come in place of question mark $(?)$in the following questions?
$5\frac{17}{37}\times 4\frac{51}{52}\times 11\frac{1}{7}+2\frac{3}{4}=?$

What should come in place of question mark (?) in the following questions?
$(27{)}^2\times 6÷9+(7{)}^3+71=(?{)}^3-431$

What should come in place of question mark (?) in the following questions?
$4.4\times \frac{5}{16} \mathrm{of} 30\% \mathrm{of} 216=?$  

What will come in place of the question mark (?) in the following questions?(You are not expected to calculate exact values)
$41.60\% \mathrm{of} 9567.88 ÷ 67\% \mathrm{of} 222.1426 ={\left(?\right)}^3$

What should come in place of question mark (?) in the following questions?
$\left(\frac{3}{4}+\frac{5}{2}\right)+\left(\frac{3}{2}+\frac{29}{2}\right)=2^{-2}\times ?$

What should come in place of question mark (?) in the following question?

$\sqrt{(58\% \mathrm{of} 1450)}-18\% \mathrm{of} 550+\sqrt{5329}=?$