1. How heavy is he?

- He is 70 kg.

2. How much does he weigh?
- He is 70kg.

(Which one is right? Are both right? Which one is commonly used?)

1. is correct but look at the question #2. I'd answer: "He weights 70kg. "

Sra

He weighs 70 kg. (not weights)

That sentence is incorrect. "Weighs" is a transitive verb.

Both questions are correct and commonly used to inquire about someone's weight. The answers provided for both questions are the same: "He is 70 kg."

The question "How heavy is he?" and the answer "He is 70 kg" focus on the person's weight as a measure of heaviness.

On the other hand, the question "How much does he weigh?" also refers to the person's weight but emphasizes the measurement of weight itself.

Ultimately, both questions and answers convey the same information, and either one can be used interchangeably depending on personal preference or context.

Thank you.

1. He weighs by 70kg.(What about this one? Is 'weighs' a transitive verb or an intransitive verv?)