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An electronic device beeps after every 60 seconds. A different device beeps after every 62 seconds. They beeped together at 10 a.m. The next time that they would beep together at the earliest is at
  • a)
    10:30 a.m.
  • b)
    10:31 a.m.
  • c)
    10:59 a.m.
  • d)
    11 a.m.
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
An electronic device beeps after every 60 seconds. A different device...
The LCM of 60 and 62 is 1860, which is equal to 31 minutes.
(60 = 2 × 30)
(62 = 2 × 31)
(∵ LCM = 2 × 30 × 31)
1 minute = 60 seconds
So, (2 ×30×31) ÷ 60 = 31 minutes
So, they would beep together again after 31 minutes at 10:31 am.
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An electronic device beeps after every 60 seconds. A different device beeps after every 62 seconds. They beeped together at 10 a.m. The next time that they would beep together at the earliest is ata)10:30 a.m.b)10:31 a.m.c)10:59 a.m.d)11 a.m.Correct answer is option 'B'. Can you explain this answer?
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An electronic device beeps after every 60 seconds. A different device beeps after every 62 seconds. They beeped together at 10 a.m. The next time that they would beep together at the earliest is ata)10:30 a.m.b)10:31 a.m.c)10:59 a.m.d)11 a.m.Correct answer is option 'B'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about An electronic device beeps after every 60 seconds. A different device beeps after every 62 seconds. They beeped together at 10 a.m. The next time that they would beep together at the earliest is ata)10:30 a.m.b)10:31 a.m.c)10:59 a.m.d)11 a.m.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An electronic device beeps after every 60 seconds. A different device beeps after every 62 seconds. They beeped together at 10 a.m. The next time that they would beep together at the earliest is ata)10:30 a.m.b)10:31 a.m.c)10:59 a.m.d)11 a.m.Correct answer is option 'B'. Can you explain this answer?.
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