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.
#brainteasers #math #riddles
What's the trick?
A man went to the police station wishing to speak with the burglar who had broken into his house the night before.
"You'll get your chance in court," said the desk sergeant.
"No, no, no!" insisted the man. "I want to know how he got into the house without waking my wife. I've been trying to do that for years!"