It depends upon your hand writing , how u write , it may be small , big , normal , and also depend upon size of copy . if u r writing 5 , 6, 7 , words in one line then it will be 15- 20 line

When writing a response in 100-150 words, it is recommended to write around 10-15 lines of text. This allows for enough space to convey a clear and concise message while also providing enough detail to support your arguments or points. On the other hand, when writing in 30-40 words, it is recommended to write around 3-4 lines of text. This requires more careful consideration of which information to include and what to leave out.

The number of lines you write will depend on the specific topic or question you are addressing, as well as the level of detail you need to provide to fully answer the question. However, there are a few general guidelines you can follow:

When writing in 100-150 words:
- Start with a clear introduction that sets the context for your response
- Use specific examples or evidence to support your arguments or points
- Use clear and concise language, avoiding unnecessary words or phrases
- Conclude with a summary of your main points and any final thoughts or recommendations

When writing in 30-40 words:
- Focus on the most important points or arguments
- Use simple and direct language
- Avoid repeating information or using filler words
- Conclude with a clear and concise summary of your main points

Remember, the goal of both types of responses is to provide a clear and well-supported answer to the question or topic at hand, while also demonstrating your understanding of the material. By following these guidelines, you can ensure that your responses are effective and well-written, regardless of the length.