Mathematics, 20.11.2020 01:40 smonahan2023

Tom and Tina are working on a robot together. They can make the robot in 10 hours while working together. Todd works at half the rate Tina does (i. e. it takes Todd two times longer to make the robot than it does Tina)How long does it take Tina to make the robot by herself? How long does it take Todd to make the robot by himself ?

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