- A15
- B16
- C30
- D4
Step-by-Step Solution
s, so in 1800 s they coincide more times; with the start, 16.
Answer: B) 16
Six bells start tolling together and then toll at intervals of 2, 4, 6, 8, 10 and 12 seconds. How many times do they toll together in 30 minutes, counting the first toll?
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