A) 47
B) 53
C) 57
D) 67
Correct Answer: C
Solution :
LCM of 58/57 and 609/608 sec. In 1 hour, they will tick together \[=3600\times 19/1218=56.1\]times after the first stroke \[\Rightarrow \]57 times per hour.You need to login to perform this action.
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