Question 12
The sum of ages of three members of Diane’s family was 47 in the year 2015. They had a new born baby 2 years ago. What is the sum of the ages of all four members of the family now?
The source leaves the year of “now” unspecified. For grading, compare ages at corresponding annual dates: an unknown whole number t of years has elapsed since the 2015 reference date, each original member has aged by t years, and the baby is exactly 2 years old. Do not assume “now” is 2027. Choose among the original options under this convention.
The source leaves the year of “now” unspecified. For grading, compare ages at corresponding annual dates: an unknown whole number t of years has elapsed since the 2015 reference date, each original member has aged by t years, and the baby is exactly 2 years old. Do not assume “now” is 2027. Choose among the original options under this convention.