10 pairs are attached to knee and 6 pairs are attached to ankle. So possible pairs can be 10P6 = 10! / 6! (10-6)! = 10! / 6! 4! = 210
Work Step by Step
As given in answer
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.