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IP1U1 SWIII Q3

IP1U1 SWIII Q3

IP 1
  1. Find the lowest common multiple (LCM) of \(15\), \(32\) and \(48\).
  2. Due to a safety regulation, three warning alarms will sound off a 'beep' every \(15\) minutes, \(32\) minutes and \(48\) minutes respectively. Given that they sounded off together at \(6.00\) a.m. on one particular morning, when is the next time that all the three alarms will beep together again?

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Answer:(a) \(480\) (b) \(2.00\text{ p.m.}\) \((14{:}00)\)

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