Question : The value of $\frac{1}{8} × \left[\frac{1}{5}\right.$ of $\left.\frac{11}{2} ÷\left\{\left(\frac{15}{3}-\frac{18}{6}\right)\right\}\right]$ is:

Option 1: $\frac{11}{160}$

Option 2: $\frac{11}{20}$

Option 3: $\frac{8}{11}$

Option 4: $\frac{11}{8}$

Question : The value of $\left[\frac{1}{4}\right.$ of $\left.18 \div \frac{6}{5} \text{of}\left(\frac{1}{8}+\frac{7}{4}\right)\right] \times \frac{1}{15}$ is:

Option 1: $\frac{2}{15}$

Option 2: $\frac{6}{7}$

Option 3: $\frac{5}{8}$

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

Question : What is the value of [7 ÷ 14 × 8 + (5 ÷ 15 × 6 - 4 × 3)]?

Option 1: - 4

Option 2: - 2

Option 3: - 6

Option 4: - 5

Question : If p : q : r = 2 : 5 : 3 and r : s = 6 : 5, then what is the value of p : q : r : s?

Option 1: 4 : 12 : 7 : 3

Option 2: 4 : 10 : 6 : 5

Option 3: 6 : 5 : 8 : 10

Option 4: 8 : 12 : 7 : 8

Question : What is the value of (A × B) if A = 7 × 21 ÷ 49 - 8 × 7 ÷ 16 and B = 12 ÷ 6 – 3 × 2 + 5 × 3.

Option 1: –7

Option 2: –4.5

Option 3: –6

Option 4: –5.5