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2 years ago

If you woke up at 11:15 am and went to sleep at 1:55 am. How many hours where you awake?

Mathematics

2 answers:

dybincka [34]2 years ago

7 0

Answer: 15 hours and 10 minutes

Hope this helps!

shutvik [7]2 years ago

3 0

From 11:15 am to 11:15 pm, it is 12 hours.

From 11:15 pm to 1:15 am it is 2 hours

From 1:15 am to 1:55 am it is 40 minutes.

12 hours + 2 hours + 40 minutes = 14 hours and 40 minutes =

= 14 hours and 40/60 hours = 14 2/3 hours

Answer: 14 2/3 hours

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In a box of pens, 2/7 of them are red. of the remaining pens 1/6 of them are blue and the rest are black. there are 280 more black pens than blue pens.

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Now, black pens = $x$ -(blue +red)

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