Working alone at a constant rate, John can sanitize
the house in 42 minutes. If John works together with
Anna at a constant rate in sanitizing the house, it
takes them 28 minutes. Working at a constant rate,
how long would it take Anna to sanitize the house by
herself?
Answers
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1
Answer is 14 minutes.
Because:
= Time taken by John - Time taken by John and Anna
= 42 - 28
= 14
Because:
= Time taken by John - Time taken by John and Anna
= 42 - 28
= 14
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