Problema Solution
Mary is 24 years old. Mary is twice as old as Ann was when Mary was as old as Ann is now. How old is Ann now?
Answer provided by our tutors
Let
x = the age of Mary
y = the age of Ann
x = 24
x = 2(y - (x - y))
By solving the equation we find
y = 18 years
Ann is 18 years old now.