Question 18
MediumOriginal questionFour cousins were born 2 years apart, one after another. The sum of their present ages is 44 years. How old is the eldest?
Show the answer and explanation
CorrectNot quiteAnswer C
Correct answer: C
Explanation
Let the youngest be : ages .
, so .
Eldest = years.
Worth noting
8 years is the youngest. With four children there are only THREE gaps, so the eldest is , not (which gives 16).
- Concept
- Ages in arithmetic progression
- Typical timeTypical
- 55 s
- Your timeYours
- —
Practise this chapter →
Ten questions from Ages & Problems on Numbers, at your own pace.