Lets have a go at the Double-Unders!

55 kg is 121 lbs.

Snatch, 1 rep
Clean and jerk, 1 rep
As many rounds and reps as possible in ten minutes of:
55kg Squat clean, 6 reps
12 Pull-ups
24 Double-unders

Add together the best snatch (in kg), the best clean and jerk (in kg), and the total reps performed in the triplet for your final score.

We would accomplish many more things if we did not think of them as impossible.
C. Malesherbes