Anonymous C joined in and replied with this 13 years ago, 4 minutes later, 4 minutes after the original post[^][v]#433,951
@OP
At 7:00am, one train leaves its station headed north at 75km/h. At the same time, another train leaves a different station 135km directly to the west, and that train is traveling due east at 90km/h. At what time will the two trains be closest to each other?
Riffraff replied with this 13 years ago, 56 seconds later, 5 minutes after the original post[^][v]#433,952
Syntax joined in and replied with this 13 years ago, 2 minutes later, 8 minutes after the original post[^][v]#433,953
op
Starting with three cups, you place one of the cups upside down and the other two right-side up. The objective is to turn all cups right-side up in no more than six moves. You must turn over exactly two cups at each move.
What is the solution?
Anonymous E joined in and replied with this 13 years ago, 35 seconds later, 9 minutes after the original post[^][v]#433,954
At 4:20am, r04r leaves her house headed north at 57km/h. At the same time, sim leaves his house 50km directly to the west, and he is travelling due east at 21km/h. At what time will r04r and sim be closest to each other?
Ks !KansasxqvM joined in and replied with this 13 years ago, 2 hours later, 2 hours after the original post[^][v]#433,998