Bus A arrives at Jurong MRT interchange every 8 minutes. Bus B arrives every 12 minutes. Both buses arrive together at 7:00 a.m. At what time will they NEXT arrive together at the interchange?
Show Worked Solution
Worked Solution
Step 1: List multiples of 8: 8, 16, 24, 32, 40, 48, …
Step 2: List multiples of 12: 12, 24, 36, 48, …
Step 3: The lowest common multiple (LCM) of 8 and 12 is 24. The buses will next arrive together after 24 minutes.
Step 4: 7:00 a.m. + 24 minutes = 7:24 a.m.
Answer: 7:24 a.m.
Correct answer: 7:24 a.m.
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