Question 632747: `Problem: One day I was at school,the electricity went out at home. when I left for swim practice that morning,all the clocks were working and the time was 6:30am.When I returned home they all said different times. the wind -up clock,which was unaffected by the loss of electricity,have a time of 5:21pm. my math clock, which stops when the electricity is off and runs when the electricity is on, gave a time of 3:50 pm. My digital clock, which resets to midnight when the power goes off and continues to run from that point,have a flashing time of 6:03 am. Assuming the electricity went out only once, what time did it go out and for how long?
~ also can you show all of your work thank you soo muchh
Found 2 solutions by Alan3354, MathTherapy:
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! One day I was at school,the electricity went out at home. when I left for swim practice that morning,all the clocks were working and the time was 6:30am.When I returned home they all said different times. the wind -up clock,which was unaffected by the loss of electricity,have a time of 5:21pm. my math clock, which stops when the electricity is off and runs when the electricity is on, gave a time of 3:50 pm. My digital clock, which resets to midnight when the power goes off and continues to run from that point,have a flashing time of 6:03 am. Assuming the electricity went out only once, what time did it go out and for how long?
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the wind -up clock,which was unaffected by the loss of electricity,have a time of 5:21pm. my math clock, which stops when the electricity is off and runs when the electricity is on, gave a time of 3:50 pm.
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The difference from 350 to 521 = 1hr 31 minutes, the time the power was off.
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My digital clock, which resets to midnight when the power goes off and continues to run from that point,have a flashing time of 6:03 am. Assuming the electricity went out only once, what time did it go out
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The digital clock ran for 6hr 3 minutes since power was restored.
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1721 - 603 = 1118, the time the power was restored.
1118 - 131 = 0947, the time the power went off
Answer by MathTherapy(10552)  (Show Source):
You can put this solution on YOUR website!
`Problem: One day I was at school,the electricity went out at home. when I left for swim practice that morning,all the clocks were working and the time was 6:30am.When I returned home they all said different times. the wind -up clock,which was unaffected by the loss of electricity,have a time of 5:21pm. my math clock, which stops when the electricity is off and runs when the electricity is on, gave a time of 3:50 pm. My digital clock, which resets to midnight when the power goes off and continues to run from that point,have a flashing time of 6:03 am. Assuming the electricity went out only once, what time did it go out and for how long?
~ also can you show all of your work thank you soo muchh
6:30 AM – 5:21 PM means that it had been 10 hrs, 51 minutes since I left
6:30 AM - 3:50 PM means that the math clock had been working for 9 hrs, 20 minutes, which also means that the light was out for  : 10 hrs, 51 mins, less 9 hrs, 20 mins, OR 5:21 – (minus) 3:50
12:00 AM – 6:03 AM means that the electricity came back 6 hours, 3 minutes ago
Since at 5:21 PM (the correct time), the electricity came back 6 hours, 3 minutes ago, then it came back at 11:18 AM.
Since it went out for 1 hour, 31 minutes, and it came back at 11:18 AM, then the light went out at  AM.
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