Simplification questions and Answers for competitive exams

$199+5^{3} \div 4 \times 4^{2}=?$

If $(58)^{2}$ is added to the square of a number, the answer so obtained is 5668. What is the number?

Which number should replace both the question marks (?) in the following equation? $\frac{?}{188}=\frac{47}{?}$

$\frac{4}{9}$ of $\frac{3}{8}$ of $\frac{2}{7}$ of $294=?$

16% of 250 + 115% of 480 = ?

16.45 × 2.8 + 4.5 × 1.6 = ?

45% of 660 + 28% of 450 = ?

$22^{2}+\sqrt{?}=516$

420 ÷ 28 × 288 ÷ 32 = ?

5616 ÷ 18 ÷ 8 = ?

2.8 + 28.8 + 2.88 + 0.2 + 0.28 = ?

93 + 26 × 3 – 51 = ?

$(47)^{2}-(15)^{2}=?$

$\frac{34 \times 4-12 \times 8}{6^{2}+\sqrt{196}+(11)^{2}}=?$

$\sqrt{?}+15^{2}=235$