Question
Albert and Brent builds a toy car in 3 hours.
Brent and Cooper builds a toy car in 2 hours.
Cooper and Albert builds a toy car in 8 hours.
How long does it take for Albert, Brent and Cooper to build a toy car together?
3 m

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Albert and Brent builds a toy car in 3 hours.
Brent and Cooper builds a toy car in 2 hours.
Cooper and Albert builds a toy car in 8 hours.
How long does it take for Albert, Brent and Cooper to build a toy car together?