Question : If (x + y) : (y + z) : (z + x) = 3 : 5 : 7 and (x + y + z) = 45, then what is the value of z?

Option 1: 18

Option 2: 30

Option 3: 27

Option 4: 20

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 : 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 : If (7x + y) : (7x – y) = 7 : 3, then what is the value of x : y?

Option 1: 4 : 3

Option 2: 5 : 14

Option 3: 15 : 6

Option 4: 6 : 15

Question : Directions: If 2 + 3 + 5 = 30; 3 + 4 + 6 = 72; 5 + 6 + 2 = 60; then 5 + 4 + 0 = ?

Option 1: 40

Option 2: 30

Option 3: 0

Option 4: None