If x + y = 52 and x − y = 20, then what is the value of x : y?
Answer & explanation
Correct answer: option 3
x + y = 52 ---- (A)
x - y = 20 ---- (B)
From (A) + (B), we get
= x = 36
From (A),
= y = 16
= x : y = 36 : 16 = 9 : 4
If x + y = 52 and x − y = 20, then what is the value of x : y?
Correct answer: option 3
x + y = 52 ---- (A)
x - y = 20 ---- (B)
From (A) + (B), we get
= x = 36
From (A),
= y = 16
= x : y = 36 : 16 = 9 : 4