练习题 · 英文原题 · SEL-TS-TST-10
Bella, Hiro, Kian and Nadia are lining up for the water slide.
- Hiro is first in the line.
- Nadia is directly behind Bella.
- Kian is not last.
Who is second in the line?
查看答案与解析(英文)
答案: D
Answer: D (Kian)
- Hiro is first, so places 2, 3 and 4 are left for Bella, Nadia and Kian.
- Bella and Nadia stand together with Nadia behind, so they take places 2 and 3, or places 3 and 4.
- Check places 2 and 3: Kian would be 4th, which is last. Not allowed.
- Check places 3 and 4: Kian is 2nd. All three clues are met.
- Only one order works: Hiro, Kian, Bella, Nadia. Kian is second.
Why the other options are wrong
- A (Bella): Bella can only be second if Kian is last, and the clues say he is not.
- B (It cannot be worked out): Testing both places for Bella and Nadia leaves only one order, so it can be worked out.
- C (Nadia): Nadia stands directly behind Bella, so she could only be second if Bella were first, but Hiro is first.
