Question
P5.ST.JC.18121186-A1
Ali and Bernard builds a toy car in 6 hours.
Bernard and Chen builds a toy car in 9 hours.
Chen and Ali builds a toy car in 3 hours.
How long does it take for Ali, Bernard and Chen to build a toy car together?
3 m
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Primary 5 STRATEGIES P5.ST.JC.18121186

03 Jul 2024, 08:43 PM

Ali and Bernard builds a toy car in 6 hours.
Bernard and Chen builds a toy car in 9 hours.
Chen and Ali builds a toy car in 3 hours.
How long does it take for Ali, Bernard and Chen to build a toy car together?
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