(x+y)/(x-y) = 7/3 হয়, তবে x:y= কত?

(x+y)/(x-y) = 7/3 হয়, তবে x:y= কত?

A 6:5

B 8:5

C 5:2

D 4:3

Solution

Correct Answer: Option C

x+y/x-y=7/3
⇒ 3x + 3y = 7x - 7y
⇒ 4x = 10y
⇒ x/y=10/4
⇒ x/y=5/2
∴ x : y = 5:2