Problem 4 · Connect ages across a timeline · 4 points
Made by AI and not reviewed by a real person.
Lila is 4 years older than Sam. Back when Lila was Sam’s age today, Sam was 3. How old is Lila today?
- 3
- 8
- 7
- 11
- 15
Show a hint
- Draw two columns, ‘back then’ and ‘today,’ with a space for each child’s age. Which age belongs in both columns?
- Lila is 4 years older in both columns. Work out her age back then, then use it to fill in Sam’s age today.
Show the answer and solution
Answer: D — 11
Back then, Sam was 3, so Lila was 3 + 4 = 7. Lila was Sam’s age today, so Sam is 7 today. That makes Lila 7 + 4 = 11 today. The tempting answer 7 is Lila’s age back then, not her age today.