One workout, 2 versions. First with weights for the gym and this one using just bodyweight. As ever these can be used stand alone or as a finisher to a bigger session.
For this one do as many Press-ups as you can with good form, followed by as many Inverted Rows as possible, Rest for 1 minute then repeat 10 times.
For the rows you can use either gymnastics rings, a TRX or a VERY sturdy table (at your own risk)