Present Ages:
Mrs. Sta. Maria: x
Mr. Sta. Maria: x + 5
Their ages 5 years ago:
Mrs. Sta. Maria: x-5
Mr. Sta. Maria: (x+ 5) -5 or x
Comparison 5 years ago: Mr. Sta. Maria's age was 4/3 of his wife's age.
x = 4/3 (x-5)
x = 4x/3 - 20
LCD: 3; Multiply each term by 3.
(3)x = (3) (4x/3) - 3(20)
3x = 4x - 60
-4x + 3x = -60
-1(-x = -60)-1
x = 60
Present ages:
Mrs. Sta. Maria; x = 60 years old
Mr. Sta. Maria: x + 5 ⇒ 60 + 5 = 65 years old
Their ages in 8 years (Plus 8):
Mrs. Sta. Maria: 60 + 8 = 68 years old
Mr. Sta. Maria: 65 + 8= 73 years old
In 8 years, Mr. Sta. Maria will be 73 years old and his wife will be 68 years. old.
