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
A woman walked up to a little...
A woman walked up to a little old man rocking in a chair on his porch. "I couldn't help noticing how happy you look," she said. "What's your secret for a long happy life?"
"I smoke three packs of cigarettes a day," he said. "I also drink a case of whiskey a week, eat fatty foods, and never exercise."
"That's amazing," said the woman, "how old are you?"
"Twenty-six," he said.
"I smoke three packs of cigarettes a day," he said. "I also drink a case of whiskey a week, eat fatty foods, and never exercise."
"That's amazing," said the woman, "how old are you?"
"Twenty-six," he said.