In a certain code language, 253' means 'books are old', '546' means 'man is old' and '378' means 'buy good books'. What stands for 'are' in that code?

Options

A. 2
B. 4
C. 5
D. 6

Answer

To solve the problem, we need to decode the numbers based on the words they represent. Let's break it down step by step.

### Step 1: Analyze the given codes and their meanings
We have three codes:
1. **253** means **books are old**
2. **546** means **man is old**
3. **378** means **buy good books**

### Step 2: Identify common words and codes
- In the first two codes (253 and 546), the common word is **old**.
- The common number in both codes is **5**. Therefore, we can conclude that:
- **5** = **old**

### Step 3: Find the code for "books"
- Now, looking at the first code (253) which means **books are old** and the third code (378) which means **buy good books**, we can see that the common word here is **books**.
- The common number in both codes (253 and 378) is **3**. Therefore, we can conclude that:
- **3** = **books**

### Step 4: Determine the code for "are"
- Now we know:
- **5** = **old**
- **3** = **books**

- In the first code (253), the remaining number is **2**. Since we have already identified the codes for "old" and "books", the only word left is **are**. Thus:
- **2** = **are**

### Conclusion
The number that stands for "are" in that code is **2**.

### Final Answer
**2**

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