Oliver and felicity have been married for exactly 2 years. Oliver is four years older than felicity. Now the sum of their ages is 65. How old was felicity when they were married?

Question

a. Set up and write an equation that represents the unknown ages in terms of felicity’s age when they were married.

Answer 1

65 /2 = 32.5 is the average age of each person

if there is 4 years difference. 4/2 = 2

To create a 4 years difference, subtract 2 years from Felicity's age and add 2 years to Oliver's age

32.5 - 2 = 30.5 is Felicity's age now

32.5 + 2 = 34.5 is Oliver's age now

therefore, 30.5 - 2 years = 28.5 was Felicity's age when they were married.