Official Solution: Bunuel
The table provides data about 9 cordless electric kettles currently in stock at an appliance retailer. For each kettle, the data include capacity in liters, the time to boil 1 liter of water in minutes, power in watts, a noise score from 1 to 10 (lower is quieter), and price.
| Model | Capacity (L) | Boil time (min) | Power (W) | Noise score | Price |
| Aster | 1.0 | 3.2 | 1800 | 5 | \(42 |
| Brook | 1.7 | 3.0 | 2200 | 6 | \)69 |
| Crest | 1.5 | 3.4 | 2000 | 4 | \(58 |
| Drift | 1.2 | 2.8 | 2000 | 6 | \)55 |
| Ember | 1.7 | 2.9 | 2200 | 4 | \(62 |
| Fable | 1.5 | 3.1 | 1850 | 3 | \)49 |
| Grove | 1.0 | 3.6 | 1500 | 2 | \(38 |
| Halo | 1.3 | 2.7 | 2200 | 7 | \)72 |
| Iris | 1.6 | 2.6 | 2200 | 5 | $95 |
For each of the following statements, select
True if it is true based on the information provided; otherwise, select
False.
• Among models with capacity at least 1.5 L, the cheapest model also has the longest boil time. Cheapest in that subset is Fable ($49). Longest boil time in that subset is Crest (3.4 min). They are different models.
Answer:
False • No model with power below 2000 W reaches a boil in under 3.0 minutes. Each model below 2000 W (Grove, Aster, Fable) has a boil time greater than 3.0 minutes.
Answer:
True • Among models with power 2200 W, the model with the lowest noise score is not the one with the fastest boil time. Lowest noise among 2200 W is Ember (noise 4). Fastest boil time among 2200 W is Iris (2.6 min). They are different models.
Answer:
True Correct answer: Among models with capacity at least 1.5 L, the cheapest model also has the longest boil time.
"False"No model with power below 2000 W reaches a boil in under 3.0 minutes.
"True"Among models with power 2200 W, the model with the lowest noise score is not the one with the fastest boil time.
"True"