2020 2marks P6 Paper2 SA2 Singapore Chinese Girls (SCGS)

P6 / SCGS / 2020 / SA2 Prelims / Paper 2 – Q04 [2 marks]

Question:

Allison’s watch is programmed to ring every 5 minutes. Her alarm clock is programmed to ring every 8 minutes. At what time will the 2 devices ring together again given that the last time they rang together was at 10 a.m.?

Solution:

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