Participants in a certain road race competed not only against the entire field, but also against several smaller subfields based...
GMAT Table Analysis : (TA) Questions
Participants in a certain road race competed not only against the entire field, but also against several smaller subfields based on age, racing experience, and geographic location. For each of the participants in this road race, the table shows the ranking of the participant's race completion time (RCT) within each subfield in which they competed. For example, the table shows that Participant 13's RCT was third-fastest in Subfield G and fifth-fastest in Subfield H. Note that no two of the participants had the same RCT.
Participant | G | H | I | J | K | L |
---|---|---|---|---|---|---|
13 | 3 | 5 | 3 | 4 | ||
15 | 6 | 5 | 3 | |||
16 | 4 | 2 | 3 | 3 | 1 | |
17 | 6 | |||||
23 | 7 | 6 | 7 | |||
30 | 4 | 6 | 5 | 4 | 2 | |
31 | 5 | 4 | 5 | |||
36 | 7 | 7 | 6 | 8 | ||
39 | 3 | 1 | ||||
41 | 8 | 8 | 4 | |||
54 | 2 | 2 | 1 | |||
83 | 8 | 9 | 7 | 9 | ||
94 | 1 | 1 | 1 | |||
97 | 2 | 2 |
For each of the following participants, select Yes if the participant's RCT was faster than that of Participant 30. Otherwise, select No.
OWNING THE DATASET
Let's start by understanding this race time rankings table with a focus on efficiency. This dataset shows how participants performed in different subfields (G, H, J, K) of a race.
Key observations that will help us solve quickly:
- Lower numbers represent better rankings (1st place is better than 8th)
- Not all participants competed in all subfields (marked as 'n/a')
- We need to compare participants 13, 17, and 41 against participant 30
Looking at participant 30's row as our reference point:
Participant 30: G(4), H(6), J(5), K(n/a)
Key insight: To determine if someone had a faster overall race time, we don't need to calculate anything - we just need to check if they consistently ranked better than participant 30 in the subfields they both competed in.
ANALYZING STATEMENT 1
Statement 1 Translation:
Original: Participant 13 had a faster overall race time than participant 30.
What we're looking for:
- Participant 13's rankings in subfields where both 13 and 30 competed
- Whether 13 consistently ranked better (lower numbers) than 30 in these shared subfields
In other words: Did participant 13 generally outperform participant 30 in the subfields they both participated in?
Let's compare their rankings efficiently:
Subfield G: 13(3) vs 30(4) → 13 ranked better ✓
Subfield H: 13(5) vs 30(6) → 13 ranked better ✓
We've found a clear pattern! Participant 13 ranked better than participant 30 in both subfields G and H. This consistent pattern provides strong evidence that participant 13 had a faster overall race time.
Teaching callout: Notice how we didn't need to check subfields J and K. When we see a consistent pattern across multiple subfields, we can make a confident determination without examining every single data point. This is the 2-Point Pattern rule in action.
Statement 1 verdict: Yes, participant 13 had a faster overall race time than participant 30.
ANALYZING STATEMENT 2
Statement 2 Translation:
Original: Participant 17 had a faster overall race time than participant 30.
What we're looking for:
- Participant 17's rankings in subfields where both 17 and 30 competed
- Whether 17 consistently ranked better than 30 in these shared subfields
In other words: Did participant 17 generally outperform participant 30 in their shared subfields?
Let's compare efficiently:
Subfield G: 17(6) vs 30(4) → 30 ranked better ✗
Subfield J: 17(7) vs 30(5) → 30 ranked better ✗
Here's where our efficient approach pays off! We've found two subfields where participant 30 consistently ranked better than participant 17. This pattern clearly indicates that participant 17 did NOT have a faster overall race time than participant 30.
Teaching callout: Having two consistent data points showing participant 30 outperforming participant 17 gives us sufficient confidence in our answer. We don't need to waste time checking subfield K.
Statement 2 verdict: No, participant 17 did not have a faster overall race time than participant 30.
ANALYZING STATEMENT 3
Statement 3 Translation:
Original: Participant 41 had a faster overall race time than participant 30.
What we're looking for:
- Participant 41's rankings in subfields where both 41 and 30 competed
- Whether 41 consistently ranked better than 30 in these shared subfields
In other words: Did participant 41 generally outperform participant 30 in the subfields they both competed in?
Let's compare efficiently:
Subfield G: 41(8) vs 30(4) → 30 ranked better ✗
Subfield H: 41(8) vs 30(6) → 30 ranked better ✗
The evidence is even stronger here! Not only did participant 30 outrank participant 41 in both subfields, but the differences are substantial (4 vs 8 and 6 vs 8). This provides compelling evidence that participant 41 did NOT have a faster overall race time than participant 30.
Teaching callout: The magnitude of the differences matters! When we see large gaps in rankings (like 4 vs 8), it provides even stronger evidence than smaller gaps. This allows us to be more confident in our conclusion with fewer comparisons.
Statement 3 verdict: No, participant 41 did not have a faster overall race time than participant 30.
FINAL ANSWER COMPILATION
Based on our efficient analysis:
- Statement 1 (Participant 13 vs 30): Yes
- Statement 2 (Participant 17 vs 30): No
- Statement 3 (Participant 41 vs 30): No
Therefore, our answer is: Yes, No, No
Participant 13
Participant 17
Participant 41