"An hour and a half" is the equivalent of 90 minutes, which is usually used to represent a time period. However, if you're referring to the length of an article or written work, you can use the phrase "not less than 400 words" to indicate the minimum word count requirement.
"An hour and a half" is the proper way to say it in English, which refers to 90 minutes or 5400 seconds. To comply with the requirement of a 400-word article, one may need to consider the topic and purpose of the article, conduct research and **ysis, and write with clarity and coherence. Some tips for writing a 400-word article within an hour and a half include:
1. Choose a topic that you are familiar with, interested in, or passionate about, as it will help you to write more efficiently and effectively.
2. Conduct some research and **ysis to gather relevant information, statistics, examples, and quotes that can support your main points and arguments.
3. Create an outline or a draft that includes an introduction, body paragraphs, and a conclusion, and use transitional words and phrases to connect them.
4. Focus on writing in a clear, concise, and coherent manner, avoiding ambiguous or convoluted sentences, redundant phrases, or jargon.
5. Edit and proofread your article for grammar, spelling, punctuation, and formatting errors, and revise it if necessary to improve its quality and readability.
By following these guidelines, one can write a 400-word article within an hour and a half that is informative, engaging, and well-written.