On an average, female cockroach produce ………P…………..oothecae, each containing ……….Q……..eggs. Select the appropriate option for P and Q.

Options

A. `P-9-10, Q-16-18`
B. `P-9-10, Q-14-16`
C. `P-14-16, Q-9-10`
D. `P-14-16, Q-10-12`

Answer

To solve the question regarding the average number of oothecae produced by a female cockroach and the number of eggs contained in each ootheca, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terminology**:
- The term "ootheca" refers to the egg case produced by female cockroaches, which contains fertilized eggs.

2. **Identify the Average Production**:
- Research or recall that a female cockroach typically produces a certain number of oothecae during her lifetime.

3. **Determine the Number of Oothecae (P)**:
- On average, a female cockroach produces about **9 to 10 oothecae**.

4. **Identify the Number of Eggs per Ootheca (Q)**:
- Each ootheca contains a specific number of eggs. The average number of eggs per ootheca is approximately **14 to 16 eggs**.

5. **Select the Appropriate Options for P and Q**:
- Therefore, for the question, P corresponds to **9 to 10** and Q corresponds to **14 to 16**.

6. **Final Selection**:
- Based on the above information, the correct option that includes both P and Q is option number 2.

### Final Answer:
- P = 9 to 10
- Q = 14 to 16