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14 Apr 2025, 03:54
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D1: 26
D2: 35
An athlete is training for a marathon and is gradually increasing the distance she runs each week. Before training begins, she can run 20 kilometers per day. Her coach estimates that the distance she can run per day will increase at a constant rate over time.
The coach predicts that after 8 weeks of training, she will be running 44 kilometers per day.
Select for D1 the distance, in kilometers per day, that the athlete will be able to run after 2 weeks of training and select for D2 the distance, in kilometers per day, that the athlete will be able to run after 5 weeks of training. Make only two selections, one in each column.
The coach predicts that after 8 weeks of training, she will be running 44 kilometers per day.
Select for D1 the distance, in kilometers per day, that the athlete will be able to run after 2 weeks of training and select for D2 the distance, in kilometers per day, that the athlete will be able to run after 5 weeks of training. Make only two selections, one in each column.
| D1 | D2 | |
| 24 | ||
| 26 | ||
| 29 | ||
| 32 | ||
| 35 |
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Official Answer
D1: 26
D2: 35
14 Apr 2025, 03:54
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Official Solution:
The athlete starts at 20 kilometers per day. After 8 weeks, she is expected to run 44 kilometers per day. Since her distance increases at a constant rate:
\(\frac{44 – 20}{8} = \frac{24}{8} = 3\) kilometers per week.
After 2 weeks:
20 + 2 * 3 = 26 kilometers per day (D1 = 26 km).
After 5 weeks:
20 + 5 * 3 = 35 kilometers per day (D2 = 35 km).
Correct answer:
D1 "26"
D2 "35"
Bunuel
The athlete starts at 20 kilometers per day. After 8 weeks, she is expected to run 44 kilometers per day. Since her distance increases at a constant rate:
\(\frac{44 – 20}{8} = \frac{24}{8} = 3\) kilometers per week.
After 2 weeks:
20 + 2 * 3 = 26 kilometers per day (D1 = 26 km).
After 5 weeks:
20 + 5 * 3 = 35 kilometers per day (D2 = 35 km).
Correct answer:
D1 "26"
D2 "35"
Mrinalsingh13
Joined: 30 May 2020
Last visit: 15 Mar 2026
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GMAT 1: 750 Q50 V41
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06 Sep 2025, 06:49
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Why would this not be a GP? By constant rate I understood that if she ran 20km before training, every week she'll improve at a rate of let's say x%.
