Question : Simplify: $\frac{533 bxaz}{41ab}$

Option 1: $17xzb$

Option 2: $19xz$

Option 3: $13xz$

Option 4: $31ab$

Question : Simplify the following expression.
$\frac{7}{10} \div \frac{3}{7}$ of $\left(2 \frac{3}{10}+2 \frac{3}{5}\right)+\frac{1}{5} \div 1 \frac{2}{5}-\frac{2}{7}$

Option 1: $-\frac{4}{21}$

Option 2: $\frac{5}{21}$

Option 3: $\frac{4}{21}$

Option 4: $-\frac{5}{21}$

Question : Simplify the following expression:
$[\frac{85}{34}×\frac{1}{18}–${${{(\frac{46}{69}÷\frac{27}{135})}}–(\frac{86}{129}×\frac{91}{14})$} of $\frac{112}{36}]$

Option 1: $3 \frac{1}{5}$

Option 2: $3 \frac{3}{4}$

Option 3: $3 \frac{1}{2}$

Option 4: $3 \frac{1}{4}$

Question : Simplify: $\frac{256 x^4-16 y^4}{\left(80 x^2-20 y^2\right)\left(16 x^2+4 y^2\right)}$

Option 1: $5$

Option 2: $\frac{1}{20}$

Option 3: $\frac{1}{5}$

Option 4: $\frac{2}{5}$

Question : Simplify $\frac{1}{2 + 2 p} + \frac{1}{2 + 2 q} + \frac{1}{2 + 2 r}$, where $p = \frac{x}{y + z}$, if $q = \frac{y}{z + x}$ and $r = \frac{z}{x + y}$.

Option 1: $1$

Option 2: $x+y+z$

Option 3: $2$

Option 4: $\frac{1}{2}$

Question : Simplify the following expression.
$(2 \times 7-5+9 \div 3) \div(4+2)^2 \times 2$

Option 1: $2$

Option 2: $\frac{3}{2}$

Option 3: $\frac{2}{3}$

Option 4: $1.5$