Question
P5.ST.JC.18121186-A1
Alex and Bradley builds a toy car in 10 hours.
Bradley and Chung builds a toy car in 6 hours.
Chung and Alex builds a toy car in 5 hours.
How long does it take for Alex, Bradley and Chung to build a toy car together?
3 m
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Primary 5 STRATEGIES P5.ST.JC.18121186

27 Jun 2024, 01:09 AM

Alex and Bradley builds a toy car in 10 hours.
Bradley and Chung builds a toy car in 6 hours.
Chung and Alex builds a toy car in 5 hours.
How long does it take for Alex, Bradley and Chung to build a toy car together?
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