Thinking Skills
Zara, Ben and Cleo each have 24 counters. They take turns: even means give that many to each of the other two…
Question 1 · Multiple choice
Question
Zara, Ben and Cleo each have 24 counters. They take turns: even means give that many to each of the other two; odd means receive that many from each. Zara spins 2. Ben spins 3. If they end with 21, 36 and 15, what did Cleo spin?
Options
- A. 1
- B. 2
- C. 3
- D. 4
Correct answer
D. 4
Explanation
After Zara 2 (even, gives 2): Zara 20, Ben 26, Cleo 26. After Ben 3 (odd, receives 3): Zara 17, Ben 32, Cleo 23. To end at 21, 36, 15, Cleo must go from 23 to 15 (lose 8). Losing 8 means she gave 4 to each, so she spun a 4.