mommyme mommyme

26-10-2016
Mathematics

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A strobe light flashes 240 times in 2 minutes. After how many seconds does the strobe light flash one time?
a. 0.25 second
b. 0.5 second
c. 120 seconds
d. 480 seoncds

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Аноним Аноним

26-10-2016

the answer is d.480

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