Tanya and Cam can each wash a car and vacuum its interior in 2 hours. Pat needs 3 hours to do this same job by himself. If Pat, Cam and Tanya work together, how long will it take them to clean a car?
2 answers:
Answer:
1 hours
Step-by-step explanation:
That is my only answer ok
Answer:
if 2 people together each take 1 hour to clean it together
and 1 person alone takes 3 hours to clean it alone
then all together it would take them 1 hour 3-2=1
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