There are four three-digit n...
There are four three-digit numbers that share this property: the number itself, its double and its triple contain each digit from 1 to 9 exactly once. For example, 192 is one of them because 192, 384, 576 contain 1 to 9 each once. 273 is another one of them because 273, 546, 819 contain 1 to 9 each once. Can you find the other two numbers and calculate the product of these two numbers?Correct answers: 23
The first user who solved this task is Djordje Timotijevic.
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An HMO Manager at the Pearly Gates
Two doctors and an HMO manager died and lined up at the pearly gates for admission to heaven.
St. Peter asked them to identify themselves
. One doctor stepped forward and said, "I was a pediatric spine surgeon and helped kids overcome their deformities."
St. Peter said, "You can enter.
"The second doctor said, "I was a psychiatrist. I helped people rehabilitate themselves."
St. Peter also invited him in.
The third applicant stepped forward and said, "I was an HMO manager. I helped people get cost-effective health care."
St. Peter said, "You can come in, too.
"But as the HMO manager walked by, St. Peter added, "You can stay three days. After that, you can go to Hell."