Mathematics
NULL
Medium
Question
Four bells begin to toll together and then at intervals of 8, 10, 12 and 16 seconds. After how many seconds will they toll together again?
A
246 seconds
B
242 seconds
C
240 seconds
✓ Official correct answer
D
243 seconds
Community credibility
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A
246 seconds
No member explanations yet for this option.
B
242 seconds
No member explanations yet for this option.
C
240 seconds
No member explanations yet for this option.
D
243 seconds
No member explanations yet for this option.
Explanation
LCM(8,10,12,16) = 240 seconds.