Skip to content / Đến nội dung
ThichHocToan.com

2019 AMC 10A Question 3

AMC10 · 2019 AMC 10A

Question 3

Ana and Bonita were born on the same date in different years, $n$ years apart. Last year Ana was $5$ times as old as Bonita. This year Ana’s age is the square of Bonita’s age. What is $n?$
  1. $3$
  2. $5$
  3. $9$
  4. $12$
  5. $15$