Mathematics · Time and Work
एक पेंडुलम 4 सेकंड में 6 बार टकराता है और दूसरा पेंडुलम 5 सेकंड में 8 बार टकराता है। यदि दोनों पेंडुलम एक ही समय पर टकराना शुरू करते हैं, तो एक मिनट में कितनी स्पष्ट आवाजें (स्ट्राइक) सुनी जा सकती हैं?
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