A red light,a blue light and a yellow light flicker after every 3 minutes, 6 minutes and 9 minutes respectivelyIf all the three lights flicker together at 8 p.m.. then when will they flicker together next?
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Mahendra Singh Dhoni, is a former Indian international cricketer who captained the Indian national team in limited-overs formats from 2007 to 2017 and in Test cricket from 2008 to 2014. MS Dhoni is the only captain in the history of cricket to win all ICC trophies.
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Interval at which all shall flicker together can be found by calculating LCM of all the interval values (3,6and 9 minutes).
LCM is 36 minutes = half hour and 6 minutes. Hence after 1 pm, next they will flicker together at 8PM + half hour and 6 minutes that is 8:36pm.
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