Question : If $\mathrm{X: Y=3: 2}$, then what is the value of $\mathrm{(X-Y):(X+Y) }$?

Option 1: 4 : 5

Option 2: 1 : 5

Option 3: 8 : 9

Option 4: 3 : 7

Question : What is the value of $\frac{43 \times 2–21\ \text {of}\ 4}{28–7\ \text {of}\ 5+9}$?

Option 1: 3

Option 2: 2

Option 3: 4

Option 4: 1

Question : If $(3x+y):(3 x-y)=4: 3$, then what is the value of $x: y$?

Option 1: 5 : 3

Option 2: 7 : 3

Option 3: 5 : 2

Option 4: 7 : 4

Question : What is the ratio of 84 pens to 108 pens?

Option 1: 6 : 11

Option 2: 7 : 12

Option 3: 5 : 7

Option 4: 7 : 9

Question : If P : Q : R = 4 : 7 : 9 and R : S = 2 : 5, then what is the value of P : S?

Option 1: 8 : 45

Option 2: 1 : 5

Option 3: 9 : 57

Option 4: 10 : 43