anonymous
  • anonymous
A clock gains 2 minutes per day and another loses 3 minutes per day. Both the clocks are started on a correct time at a given instant. They will again show the correct time for an instant within
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
(a) a week (b) a month (c) six months (d) one year
anonymous
  • anonymous
I tried this before but could not formulate the equation. hmmmm....
anonymous
  • anonymous
wait, is this a digital clock? like is it 12 hours or 24 hours we're going for?

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More answers

anonymous
  • anonymous
I think 12 hours clock
anonymous
  • anonymous
one of the easier ways would be is to multiply to figure out the total number of minutes there are in the 12 hours and divide it by 5.
anonymous
  • anonymous
Each day, the clocks have gain a 5-minute gap between each other, so how big does the gap have to be to become 12 hours :)
anonymous
  • anonymous
I would say... 720 minutes per 12 hours, so the 2 minutes clock will be accurate again in 720/2/2 days = 180 days, the -3 minutes clock in 720/3/2 = 120 days. LCM of 180 and 120 is 360, so once a year?
anonymous
  • anonymous
But it's late here so my ability to reason left hours ago =)
anonymous
  • anonymous
Yes once a year is the correct answer.
anonymous
  • anonymous
I think that is right......
anonymous
  • anonymous
Yes, it matches the answer key
anonymous
  • anonymous
Good way to set it up.
anonymous
  • anonymous
oooohhh ok:) its 1:25 in the morning here :S lol
anonymous
  • anonymous
Haha where are you 14yamaka? It's 12:25am here.
anonymous
  • anonymous
japan haha
anonymous
  • anonymous
As we are giving away our local time it's 9:55 PM here.
anonymous
  • anonymous
Where are you FSM?
anonymous
  • anonymous
and where are you Fool?
anonymous
  • anonymous
I think FFM is in India
anonymous
  • anonymous
I am from India and FSM is from Australia.
anonymous
  • anonymous
Ah tis but early for you FFM :-P I'm in Perth, Australia.
anonymous
  • anonymous
after 3600 days
anonymous
  • anonymous
3600 days = 10 years o.O
anonymous
  • anonymous
whoa, that's 10 years
anonymous
  • anonymous
Why the 2 minutes clock will be accurate again in 720/2/2 days?
anonymous
  • anonymous
2 minute clock after 1800 days 3 minute clock after 1200 days
anonymous
  • anonymous
Is it 1800 or 180?
anonymous
  • anonymous
1800
anonymous
  • anonymous
I've shown my reasoning above, I got 180 days. I don't know HOW it could be 1800 or 1200 days, can you elaborate amir.sat?
anonymous
  • anonymous
So...?

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