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three signal lights becomes red after 10 seconds,16 seconds and 20 seconds.if at 9:00 am all the lights were red find at what time after this all lights will be red

Kaarthekeyan , 8 Years ago
Grade 10
anser 2 Answers
G Maheshbabu

Last Activity: 8 Years ago

at 9:20 am the three signal lights are turned to red, when the three signal lights are started to red colour at 9:00 am

kalyan

Last Activity: 8 Years ago

i think write answer is 10.20 am  this is currect answer .. signal lights are start at 9.00 am than at 10.20 am after 9.00am three light are on at 10.20 am

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