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| 1. |
Six bells start commencing tolling at intervals of 2, 4, 6, 8, 10, 12 minutes respectively.In 30 hours, how many times do they toll together? |
| Answer» Six bells start commencing tolling at intervals of 2, 4, 6, 8, 10, 12 minutes respectively.In 30 hours, how many times do they toll together? | |