The traffic lights at four different road crossings change every 15 se – McqOptions

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1.	The traffic lights at four different road crossings change every 15 seconds, 18 seconds, 27 seconds and 30 seconds respectively. If they all changed together at 6: 10:00, then at what time will they change together now?
A.	6ः14ः30 बजे
B.	6ः40ः00 बजे
C.	6ः14ः00 बजे
D.	10ः40ः00 बजे
Answer» B. 6ः40ः00 बजे

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