In a certain code, “786' means 'study very hard', '958' means 'hard' work pays and 645' means 'study and work'. Which of the following it the code for 'very'?

Options

A. 8
B. 6
C. 7
D. 5

Explanation

To solve the problem of finding the code for "very," we will analyze the given codes and their meanings step by step.

### Step-by-Step Solution:

1. **Identify the Codes and Their Meanings:**
- The code "786" means "study very hard."
- The code "958" means "hard work pays."
- The code "645" means "study and work."

2. **List Out the Words and Their Corresponding Codes:**
- From "786":
- 7 = ?
- 8 = very
- 6 = hard
- From "958":
- 9 = pays
- 5 = hard
- 8 = work
- From "645":
- 6 = study
- 4 = and
- 5 = work

3. **Find Common Codes:**
- In "786" and "645," the common word is "study," which corresponds to the digit 6.
- In "786" and "958," the common word is "hard," which corresponds to the digit 8.
- In "958" and "645," the common word is "work," which corresponds to the digit 5.

4. **Identify the Code for "very":**
- From the first code "786," we see that "very" is represented by the digit 7.
- Therefore, the code for "very" is **7**.

5. **Conclusion:**
- The code for "very" is **7**.

### Final Answer:
The code for "very" is **7**.