On Friday 27 November Buyer sends a telex to seller offering to buy 1000 tones of sugar at the current market price. The telex is received in seller's offices after a short delay at 5 pm. Since the telex operator, has gone home for the weekend, seller posts a letter in the last post on Friday, accepting the offer. This reaches buyer at 2.30 pm on Monday 30 November. Meanwhile, at 9.30 am on 30 November, buyer sends a further telex to seller withdrawing his offer. This reaches seller and is read by him immediately at 9.45 am on 30 November. Seller now seeks your advice.
Advise the seller.

Homework question. We don't do your homework for you. Tell us what you think the answer is and why. We'll tell you if we think you're right and why.

I assumed this was a contract law question, since it is, but your last two posts ( that I have deleted) were so childish, I did not know this was studied in Jr High.

But what does it take for a contract to be valid, what is the rules on rules on offer and acceptance ?

Other post doesn't even make sense - https://www.askmehelpdesk.com/fashion/can-u-tell-me-419075.html.

I smell a troll.

Uh, "telex" and "telex operators" are a thing of the past - the DISTANT past. Try the early 1970's (or before) past. All I have to say to your question is HA HA HA HA. We didn't fall for it. Now go answer you own homework question for a change.

OK, this is easy, closed and banned,