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 in each ootheca, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Oothecae**:
- An ootheca is a protective casing that contains the eggs of cockroaches. It is important to know how many of these are produced by a female cockroach.

2. **Researching Average Production**:
- Female cockroaches typically produce a certain number of oothecae during their lifetime. Research indicates that the average number is around 9 to 10 oothecae.

3. **Determining Eggs per Ootheca**:
- Each ootheca contains a specific number of eggs. The common range for the number of eggs in an ootheca is approximately 14 to 16 eggs.

4. **Selecting the Correct Options**:
- Based on the information gathered:
- For P (the number of oothecae), the answer is 9 to 10.
- For Q (the number of eggs per ootheca), the answer is 14 to 16.
- Therefore, the correct option for P and Q is (9 to 10) for P and (14 to 16) for Q.

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