In the questions, select the pair in which the numbers are similarly related as in the given pair.
5:35 :?:?

Options

A. `7:77`
B. `9:45`
C. `11:55`
D. `3:24`

Explanation

To solve the problem, we need to identify the relationship between the numbers in the pair 5:35 and then find another pair that has the same relationship.

### Step-by-Step Solution:

1. **Identify the relationship in the given pair (5:35)**:
- The first number is 5.
- The second number is 35.
- To find the relationship, we can express 35 in terms of 5.
- We notice that \( 35 = 5 \times 7 \).

2. **Determine the pattern**:
- The first number (5) is a prime number.
- The second number (35) is obtained by multiplying the first number (5) by the next prime number (7).

3. **Analyze the options**:
- **Option 1: 7:77**
- Here, 77 can be expressed as \( 7 \times 11 \).
- The first number (7) is a prime number, and the next prime number after 7 is 11.
- Thus, the relationship holds: \( 7 \times 11 = 77 \).
- **Option 2: 9:45**
- 9 is not a prime number, so this option cannot be valid.
- **Option 3: 11:55**
- Here, 55 can be expressed as \( 11 \times 5 \), but the next prime after 11 is 13, not 5.
- Therefore, this option does not maintain the same relationship.
- **Option 4: 3:24**
- Here, 24 can be expressed as \( 3 \times 8 \), but the next prime after 3 is 5.
- Thus, this option does not maintain the same relationship.

4. **Conclusion**:
- The only option that maintains the same relationship as 5:35 is **Option 1: 7:77**.

### Final Answer:
The correct answer is **7:77**.