Questions & Answers about कमीज़ और पैंट अलग हैं।
Because the subject is compound: कमीज़ और पैंट = shirt and pants.
When two things are joined by और (and), Hindi usually treats them as plural, so you use हैं rather than है.
- कमीज़ अलग है। = The shirt is separate/different.
- पैंट अलग है। = The pants/trousers item is separate/different.
- कमीज़ और पैंट अलग हैं। = The shirt and pants are separate/different.
और means and.
It joins the two nouns:
- कमीज़ = shirt
- पैंट = pants/trousers
- कमीज़ और पैंट = shirt and pants
अलग means separate, different, or apart, depending on context.
In this sentence, it most naturally means that the shirt and the pants are separate items or not together / not matching as one set.
So the sentence could imply things like:
- they are kept separately
- they are not part of the same set
- they are different from each other
Context decides the best English wording.