chris199825 chris199825

11-05-2018
Mathematics

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On a digital clock, the colon (two dots between the hour and minutes) blinks every second. In 2 hours and 20 minutes, how many times will it blink?

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Sam2525 Sam2525

11-05-2018

2·60=120
120+20=140
140·60=8400

8400

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