Question 15
A patron orders the following drinks: a 5-ounce glass of wine at 12% alcohol by volume, a vodka tonic containing 1.5 ounces of vodka at 40% alcohol by volume, and a whiskey double at 40% alcohol by volume. 

How many standard drinks did the client consume? 
A
2 standard drinks.
B
3 standard drinks.
C
4 standard drinks.
D
5 standard drinks.

To determine how many standard drinks the patron consumed, we need to calculate the alcohol content of each drink and compare it to the definition of a standard drink.

In the United States, a **standard drink** contains **0.6 ounces (14 grams)** of pure alcohol.

### 1. **Wine:**
- Volume: 5 ounces
- Alcohol by volume (ABV): 12%
- Pure alcohol content in wine:  
  \[
  \text{Alcohol in wine} = 5 \, \text{oz} \times \frac{12}{100} = 0.6 \, \text{oz}
  \]
  This is exactly 1 standard drink.

### 2. **Vodka Tonic:**
- Volume of vodka: 1.5 ounces
- Alcohol by volume (ABV): 40%
- Pure alcohol content in vodka:  
  \[
  \text{Alcohol in vodka} = 1.5 \, \text{oz} \times \frac{40}{100} = 0.6 \, \text{oz}
  \]
  This is also 1 standard drink.

### 3. **Whiskey Double:**
- A whiskey double means two servings, so:
  - Volume of whiskey: 2 × 1.5 ounces = 3 ounces
  - Alcohol by volume (ABV): 40%
- Pure alcohol content in whiskey:  
  \[
  \text{Alcohol in whiskey} = 3 \, \text{oz} \times \frac{40}{100} = 1.2 \, \text{oz}
  \]
  This equals 2 standard drinks.

### Total:
- Wine: 1 standard drink
- Vodka tonic: 1 standard drink
- Whiskey double: 2 standard drinks

The patron consumed a total of **4 standard drinks**.

### Answer: **C. 4 standard drinks**

Would you like further details or have any questions?

### Related questions:
1. How is the alcohol content calculated for mixed drinks?
2. What is the difference between a "double" and a "standard" drink serving?
3. How does alcohol by volume (ABV) affect drink strength?
4. What are the health effects of consuming multiple standard drinks in one session?
5. How does drink size affect the number of standard drinks consumed?

### Tip:
It's important to note that different countries may define a standard drink differently based on their guidelines for alcohol consumption.

A patron orders the following drinks: a 5-ounce glass of wine at 12% alcohol by volume, a vodka tonic containing 1.5 ounces of vodka at 40% alcohol by volume, and a whiskey double at 40% alcohol by volume. How many standard drinks did the client consume?

Learn how to calculate the number of standard drinks based on the volume and alcohol percentage of wine, vodka, and whiskey. This example covers real-world applications of alcohol content calculation, percentage conversion, and the definition of a standard drink. Suitable for Grade 10-12 or adult learners.

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