Two lights are turned on at the same time. One blinks every 4 seconds – InterviewSolution

1.	Two lights are turned on at the same time. One blinks every 4 seconds and the other blinks every 6 seconds. In 60 seconds, how many times will they blink at the same time
Answer» -step explanation:first find LCM of 4 and6 whichever is 12 so they will blink at same time in 12 sec 60/12=5 they will bring together 5 TIMES IN 60 second

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