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Four mobile phones commence vibrating together and vibrate at an interval of 16 secs, 9 secs, 8 secs and 4 secs respectively. In 12 minutes how many times will they vibrate together? A. 7 B. 4 C.8 D. none of these

Harshit Singh , 3 Years ago
Grade 12th pass
anser 1 Answers
Pawan Prajapati

Last Activity: 3 Years ago

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