What are the answers to These 3 questions?
Mathematics
abreezy
Question
What are the answers to These 3 questions?
1 Answer

1. User Answers mreijepatmat
1) As a start you have 100% of contaminants: so
the 1st filtration you removed 70% & remaining 30%
the 2nd filtration you removed 70% of the 30% (=21%) & remaining (30%21%)
or 9%
the 3rd filtration removed 70% of the 9% (=6.30%) & remaining (9%6.3%)
or 2.7%
the 4th filtration removed 70% of the 2.7% (1.89%) & remaining (2.7%1.89%)
or 0.81%
Follow the same logic for all remaining question.