WT Cheng's answer to Xeno's Secondary 1 Maths Singapore question.
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Hi Xeno, from above we obtain LCM of 30, 35 & 60 = 420.
420 minutes = 7 hours
Therefore, all the bells will next ring at
14 45.
420 minutes = 7 hours
Therefore, all the bells will next ring at
14 45.
Date Posted:
4 years ago
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