Wilson told Jade the preferred meal for each guest attending the dinner party. Of course Jade didn't pay attention. How long will Jade keep the information in her short-term memory without thinking about it or rehearsing it?

20-30 seconds

Explanation:

It takes 20-30seconds to keep information in a short term memory before it forgotten , just as it is to jade, she wasn't paying attention to what Wilson told her ,so what ever Wilson said to jade at that moment is kept in her short term memory for about 20-30seconds before forgetting it,because she was not paying attention.

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is there a year set? the question is incomplete