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4 votes
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 lights red-example-1
User Stovfl
by
8.2k points

2 Answers

2 votes
My answer would to 30 .. 4+16=20+10=30
User Vinestro
by
8.7k points
4 votes
it would take about 30sec for all of the lights to go at the same time
User Markthekoala
by
8.4k points
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