If (3x + y) : (3x - y) = 4 : 3, then what is the value of x : y?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 7 : 3.
Calculations:
According to the question;
⇒ (3x + y)/(3x - y) = 4/3
⇒ 3 × (3x + y) = 4 × (3x - y)
⇒ 9x + 3y = 12x - 4y
⇒ 3x = 7y
⇒ x : y = 7 : 3