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please help #9
Cindy decorates her house with three strands of holiday lights
red blinks every 4 sec
green blinks every 6 secs
white blinks 10 every 10 secs
how many secs will go by until the 3 strands blink at same time

please help 9 Cindy decorates her house with three strands of holiday lightsred blinks every 4 secgreen blinks every 6 secswhite blinks 10 every 10 secshow many class=