Usability Test - Boomerang Technique going wrong

1. When you conduct testing with 5 testers you are likely to find how many usability errors?

When you conduct testing with 5 testers you are likely to find how many usability errors?

After the first study with five participants has found 85% of the usability problems, you will want to fix these problems in a redesign. After creating the new design, you need to test again.