The average work of a and b is 20 days, then b and c is 19 days and a and c is 21 days. Find the working days of a, b and c?
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a has 22 working days
b has 18 working days
c has 20 working days
Pls mark my answer as brainliest
b has 18 working days
c has 20 working days
Pls mark my answer as brainliest
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