Question : Simplify the expression
$\frac{3.35^2-1.25^2}{3.35+1.25}=?$

Option 1: 3.10

Option 2: 4.60

Option 3: 4.10

Option 4: 2.1

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 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: $1.5$

Question : Simplify the given expression.
$\frac{(326+222)^2-(326-222)^2}{(326 \times 222)}$

Option 1: 1

Option 2: 4

Option 3: 3

Option 4: 2

Question : Simplify the given expression.
$\frac{1+\sin^4 \theta+\cos^4 \theta}{\cos^2 \theta+\sin^4 \theta}$

Option 1: 3

Option 2: 1

Option 3: 2

Option 4: 4