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3:30 - 1:38 = 1:52 or 1 minute and 52 seconds or 112 seconds
There are about 52 weeks in a year and so 9/(3*52) = 3/52 Therefore 9 weeks is 3/52 of 3 years
52.5 hours/16 = 3.28125 hours = 3 hours 16.875 minutes - 3 hours 16 minutes 52.5 seconds.
-52 - 3 + 63 -52 + 66 + 14
If it matters in what order you draw them, then the number of permutations of 52 things taken three at a time is 52! - (52-3)! = 52 * 51 * 50 = 132,600.If it does not matter in what order you draw them, the usual case, then the number of combinations of 52 things taken 3 at a time is (52! - (52-3)!) / 3! = 52 * 51 * 50 / 3 / 2 / 1 = 22,100.