Question : If ${A}=3+7 \times 2, {~B}=12 \div 4-6$, and ${C}=6 \times 5+2$, then what is the value of ${A} \times {B}+{C}$ ?

Option 1: –22

Option 2: –19

Option 3: –25

Option 4: –26

Question : P = 18 × 9 ÷ 6 + 5 × 15 ÷ 25 and Q = 15 ÷ 5 × 5 – 25 ÷ 5, what is the value of (P ÷ Q)?

Option 1: 2.5

Option 2: 2

Option 3: 3

Option 4: 1.5

Question : If A : B = 5 : 4, B: C = 6 : 5, C: D = 7 : 10, then what is the value of A : D?

Option 1: 21 : 25

Option 2: 7 : 3

Option 3: 21 : 20

Option 4: 25 : 24

Question : What is the value of $\left[\frac{1}{5}+\left\{\frac{1}{6}\right.\right.$ of $\left.\left.\left(\frac{42}{35} \div \frac{6}{25}\right)–\left(\frac{2}{7} \times \frac{6}{5} \div \frac{18}{42}\right)\right\}+\frac{19}{30}\right]$?

Option 1: $\frac{17}{15}$

Option 2: $\frac{13}{15}$

Option 3: $\frac{14}{15}$

Option 4: $\frac{11}{15}$

Question : If 2A = 3B = 7C, then what is the value of A : B : C?

Option 1: 3 : 2 : 1

Option 2: 21 : 14 : 6

Option 3: 21 : 7 : 6

Option 4: 14 : 18 : 5