SOLUTION: peter can paint a room in 10 hour and pedro can paint a same room in 10 hour. how long will take to paint the room if they work together

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Question 941074: peter can paint a room in 10 hour and pedro can paint a same room in 10 hour. how long will take to paint the room if they work together
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Add the rates to get the rate working together
+1%2F10+%2B+1%2F10+=+1%2Ft+
Multiply both sides by +10t+
+t+%2B+t+=+10+
+2t+=+10+
+t+=+5+ hrs
They can paint the room in 5 hrs working together