Question
P5.ST.JC.18121186-A1
Andrew and Brody builds a toy car in 4 hours.
Brody and Chung builds a toy car in 6 hours.
Chung and Andrew builds a toy car in 9 hours.
How long does it take for Andrew, Brody and Chung to build a toy car together?
3 m
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Primary 5 STRATEGIES P5.ST.JC.18121186

17 May 2024, 11:33 AM

Andrew and Brody builds a toy car in 4 hours.
Brody and Chung builds a toy car in 6 hours.
Chung and Andrew builds a toy car in 9 hours.
How long does it take for Andrew, Brody and Chung to build a toy car together?
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