Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?
A) 4 B) 10 C) 15 D) 16
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Answer:
900 times
Step-by-step explanation:
in 1 minute it trolls 30 times so by 30 minutes it trolls 900 times
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