Question
Albert builds a toy car in 6 hours.
Bryan builds a toy car in 18 hours.
If they work together,
how long does it take to build a toy car?
(Give the answer in fraction. Eg 113 h)
3 m

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Albert builds a toy car in 6 hours.
Bryan builds a toy car in 18 hours.
If they work together,
how long does it take to build a toy car?
(Give the answer in fraction. Eg 113 h)