If the time now is T hours (on a 24 hour clock), then the answer is mod(21 - T, 24) hours.
1 o'clock
2 days and 22 hours
If 9 large pipes take 8 hours to drain the pond, then 1 large pipe would take 8*9=72 hours. large_pipe_rate = (1/72) pond/hour Since 6 small pipe drain the pond in 16 hours, then 1 small pipe would take 6*16 = 96 hours. small_pipe_rate = (1/96) pond/hour Now we can calculate using: rate * time = work done In this case, we have two rates, but a common time, so we will have: (3*large_pipe_rate)*time + (5*small_pipe_rate)*time = 1 Plug in the values we know and solve for "time": (3*large_pipe_rate)*time + (5*small_pipe_rate)*time = 1 (3 * (1/72))*time + (5 * (1/96))*time = 1 (3/72)*time + (5/96)*time = 1 (3/72 + 5/96)*time = 1 time = 1/(3/72 + 5/96) time = 1/.09375000 time = 10.66666667 Answer: 3 large pipes and 5 small pipes could drain the pond in 10 and 2/3 hours (which is 10 hours and 40 minutes). ----------------------- The other answers disagree with me. I would like you to get this problem correct, and to be honest, I'd like the points for showing the correct way to do it. So, I'll take a moment to show you why the other answers don't even make sense. Consider if all 8 pipes were large. We know that *9* large pipes could drain the pond in 8 hours. With a little calculation, we can see that 8 large pipes could drain it in 9 hours: 8 * (1/72) * time = 1 (1/9) * time = 1 time = 9 hours If all 8 pipes were small, then it would take: 8 * (1/96) * time = 1 (1/12)* time = 1 time = 12 hours So we **know** it will be somewhere between 9 and 12 hours. Certainly NOT 16 hours. Go back to the problem statement and notice that 6 small pipes can drain the pond in 16 hours. The other answers claim that 5 small pipes + 3 large pipes also take 16 hours. Therefore, their claim is that: 6 small pipes = 5 small pipes + 3 large pipes In other words, by removing 1 of the 6 small pipes and adding 3 large ones, the drain time remains at 16 hours: 1 small pipe = 3 large pipes Nonsense. Bottom line: 3 large + 5 small will take 10 hours and 40 minutes.
I believe 4 hours and 30 minutes.
Right now it is 20:38 hours (8:37 PM) and it is 20th of August, 2012.
Friday, October 17, 2014 at 2:00:00 PM
It is one of the Date and Time functions.It is one of the Date and Time functions.It is one of the Date and Time functions.It is one of the Date and Time functions.It is one of the Date and Time functions.It is one of the Date and Time functions.It is one of the Date and Time functions.It is one of the Date and Time functions.It is one of the Date and Time functions.It is one of the Date and Time functions.It is one of the Date and Time functions.
You would use the SECOND function on the NOW function, like this: =SECOND( NOW() )
5:15 pm.
If it is currently 2 o'clock, adding 1000 hours would be 41 days and 16 hours later. So the time would be 6:00 PM 41 days from now.
That was the youngest he would date in 2010. But now he is 19, so the youngest he would date now is 16.
I don't think he would date anyone for now.
If it's 7 pm now, then 20 hours ago would have been 11 am in Eastern Time.
DATE STAMP -- The function to show current date and time in Excel is =NOW().Now Function
later
The same as it is now.