the neon signboard of a jewellery shop has three colours. the logo of the shop in red, the name of the shop in green and the picture of the same jewellery in yellow. the logo comes on every 20 seconds. the name evrt 24 seconds. the picture of the jewellery shines every 12 seconds. all these three lights were switched on together. after jow much time will all these three lights up today
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sorry bro I think this question is incomplete
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Answer: Every 2 minutes
Step-by-step explanation:
In this question we have to find the least common factor(LCM) since we need to find out when they will light up again.
lcm of 20,24,12 = 120
No. of seconds in a minute = 60
So there are 2 60's in 120 if we add it (To make it simple) And 60 seconds is 1 minute so therefore, the answer is 2 minutes.
Hope this helped.
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