Mathematics
Medium
Question
Five bells first begin to toll together and then at intervals of 5, 10, 15, 20 and 25 seconds respectively. After what interval of time will they toll again together?
A
5 min
✓ Official correct answer
B
5.5 min
C
5.2 min
D
None
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
5 min
No member explanations yet for this option.
B
5.5 min
No member explanations yet for this option.
C
5.2 min
No member explanations yet for this option.
D
None
No member explanations yet for this option.