Question : Simplify the following expression.
$0.01+0.68 \times 0.68+0.22 \times 0.22+0.044+0.136+0.44 \times 0.68$

Option 1: $0.69$

Option 2: $1$

Option 3: $0.8$

Option 4: $0.9$

Question : What is the value of $\frac{7 \text { of } 14 ÷ 4}{5 × 4 ÷ 2}+\frac{6 ÷ 12 × 3}{5 ÷ 25 × 2}+\frac{15 ÷ 5 × 6}{5× 15 ÷ 6}$?

Option 1: 7.44

Option 2: 7.64

Option 3: 7.62

Option 4: 7.22

Question : Directions: If × means ÷, – means +, ÷ means × and + means –, then 84 × 7 ÷ 4 – 16 × 8 ÷ 2 + 14 = ?

Option 1: 36

Option 2: 38

Option 3: 44

Option 4: 24

Question : If $\sqrt {0.05\times 0.5 \times a } = 0.5 \times 0.05 \times \sqrt b$, then $\frac{a}{b}$ is equal to:

Option 1: 0.0025

Option 2: 0.025

Option 3: 0.25

Option 4: 0.00025

Question : The value of 32 + 12 × 36 ÷ 4 + 4 – 22 ÷ 11 × 3 is:

Option 1: 142

Option 2: 138

Option 3: 150

Option 4: 130