Finding the highest total score
Key rule: Every bull's eye (score of 5) in Rounds 1–3 earns the player one bonus round (Rounds 4–6). So the number of bonus rounds a player actually played tells us exactly how many 5s they scored in the first three rounds.
Step 1 — Count each player's bonus rounds from the table.
| Player | Bonus rounds played | ⟹ Number of 5s in R1–R3 |
|---|
| Tanzi | R4 only | 1 |
| Umeza | R4, R5 | 2 |
| Wangdu | None | 0 |
| Xyla | R4, R5, R6 | 3 (so R1 = R2 = R3 = 5) |
| Yonita | R4 only | 1 |
| Zeneca | R4, R5 | 2 |
Step 2 — Pin down what we can immediately.
- Xyla scored 5 in all three compulsory rounds, then bonus rounds of 1, 5, and an unknown R6. Her total so far: 5+5+5+1+5+R6=21+R6.
- Wangdu has no 5s at all and R2 = 4, so R1, R3 ∈ {1, 2, 3, 4}. His total = R1+4+R3, which is at most 12.
- Tanzi has exactly one 5 in R1–R3, and R2 = 4 (not 5), so her 5 is in R1 or R3. Her total = R1+4+R3+5.
- Yonita has exactly one 5 in R1–R3, and R3 = 3 (not 5), so her 5 is in R1 or R2. Her total = R1+R2+3+5.
Step 3 — Use Clue 4 (bull's eyes in R2 = 2 × bull's eyes in R3).
Let B2 = number of players scoring 5 in Round 2, and B3 = number scoring 5 in Round 3. We know B2=2B3.
- Xyla contributes to both B2 and B3.
- Wangdu (R2 = 4, no 5s) contributes to neither.
- Tanzi (R2 = 4) cannot contribute to B2.
- Yonita (R3 = 3) cannot contribute to B3.
Since B3≥1 (Xyla), try B3=1: only Xyla has R3 = 5. Then B2=2, meaning exactly one other player has R2 = 5. But Umeza (2 bull's eyes, R3 ≠ 5) would need both 5s in R1 and R2, and Zeneca (2 bull's eyes, R3 ≠ 5) would also need both 5s in R1 and R2 — giving B2≥3. Contradiction.
So B3=2 and B2=4. Besides Xyla, exactly one more player has R3 = 5, and all three of Umeza, Yonita, Zeneca must have R2 = 5 (since Tanzi and Wangdu cannot).
Step 4 — Identify who has the second R3 = 5.
- If Zeneca had R3 = 5: her two 5s are R2 and R3, so R1 ≠ 5. But Clue 5 says Tanzi and Zeneca share the same R1. Tanzi's single 5 must be in R1 (since R3 = 5 is taken by Xyla and Zeneca, and R2 = 4), giving Tanzi R1 = 5. Then Zeneca R1 = 5 too — but we just said Zeneca R1 ≠ 5. Contradiction.
- If Tanzi had R3 = 5: her single 5 is R3, so R1 ≠ 5. Clue 5 requires Zeneca R1 = Tanzi R1 ≠ 5. But Zeneca's two 5s are R2 and (since R3 ≠ 5) R1, forcing R1 = 5. Contradiction.
- So Umeza has R3 = 5. Her two 5s are R2 and R3, so R1 ≠ 5.
Step 5 — Apply Clue 5 to fix Tanzi and Zeneca.
With Umeza having the second R3 = 5, Tanzi's R3 ≠ 5, so Tanzi's single 5 is in R1: Tanzi R1 = 5. Clue 5 says Zeneca R1 = Tanzi R1 = 5. Zeneca's two 5s are R1 and R2 (R3 ≠ 5), so Zeneca R3 ∈ {1, 2, 3, 4} and differs from Tanzi's R3.
Step 6 — Use Clue 1 (Tanzi = Umeza = Yonita) to find the common total.
- Tanzi: 5+4+R3T+5=14+R3T
- Umeza: R1U+5+5+1+2=13+R1U (R1 ≠ 5, so R1U∈{1,2,3,4})
- Yonita: R1Y+5+3+5=13+R1Y (R1 ≠ 5, so R1Y∈{1,2,3,4})
Setting them equal: 14+R3T=13+R1U=13+R1Y, so R1U=R1Y=1+R3T.
Since R1U≤4, we get R3T≤3. Testing each:
- R3T=1: common total = 15 (multiple of 3 ✓)
- R3T=2: common total = 16 (not a multiple of 3 — but Clue 2 allows only one non-multiple, and three players share this total, so three non-multiples ✗)
- R3T=3: common total = 17 (same problem ✗)
So R3T=1, common total = 15, R1U=R1Y=2.
Step 7 — Use Clue 3 (highest = 2 × lowest + 1) to fix remaining values.
Wangdu's total (at most 12) is the lowest. The highest is either Xyla (21+R6) or Zeneca (20+R3Z).
- If lowest = 12 (Wangdu R1 = R3 = 4): highest = 2×12+1=25. Xyla = 25 → R6=4. Zeneca = 20+R3Z≤24<25 ✓.
- Check Clue 2: totals are 15, 15, 12, 25, 15, 24. Only 25 is not a multiple of 3 ✓.
- Check Clue 5: Tanzi R3 = 1, Zeneca R3 = 4 (different ✓); both R1 = 5 (same ✓).
Completed table:
| Player | R1 | R2 | R3 | R4 | R5 | R6 | Total |
|---|
| Tanzi | 5 | 4 | 1 | 5 | NP | NP | 15 |
| Umeza | 2 | 5 | 5 | 1 | 2 | NP | 15 |
| Wangdu | 4 | 4 | 4 | NP | NP | NP | 12 |
| Xyla | 5 | 5 | 5 | 1 | 5 | 4 | 25 |
| Yonita | 2 | 5 | 3 | 5 | NP | NP | 15 |
| Zeneca | 5 | 5 | 4 | 5 | 5 | NP | 24 |
Xyla has the highest total: 5+5+5+1+5+4=25.
Answer: 25 (Choice A)