Question 9
Nora notices that in 2016 her age is three times the number formed by the last two digits of her birth year. When she tells her older relative, she notices the same property holds for that relative’s age. What is the difference between their ages?
Editorial note: As in the source solution, use calendar-year ages and the intended birth centuries, with Nora born in the 2000s and her older relative in the 1900s.
Editorial note: As in the source solution, use calendar-year ages and the intended birth centuries, with Nora born in the 2000s and her older relative in the 1900s.