Put on and then quickly remove some T-shirts

Task briefs

The initial task brief is laid on top of a pile of T-shirts on the table in the lab. The follow-up task brief is in David’s possession. The briefs for the task are as follows:

Put on as many T-shirts as you think you’ll need for the next part.

You have three minutes.

Your time starts now.

Take off all of the T-shirts in at least 30 seconds and at most 35 seconds.

If you fail, you have to start over.

You may not leave the lab.

The fewest number of attempts wins.

You have 60 minutes.

Your time starts on your first try.