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
Texan Farmer Travels
A Texan farmer goes to Australia for a vacation. There he meets an Aussie farmer and gets talking. The Aussie shows off his big wheat field and the Texan says, "Oh! We have wheat fields that are at least twice as large".
Then they walk around the ranch a little and the Aussie shows off his herd of cattle. The Texan immediately says, " We have longhorns that are at least twice as large as your cows".
The conversation has, meanwhile, almost died when the Texan sees a herd of kangaroos hopping through the field. He asks, "And what are those"?
The Aussie asks with an incredulous look, "Don't you have any grasshoppers in Texas"?
Then they walk around the ranch a little and the Aussie shows off his herd of cattle. The Texan immediately says, " We have longhorns that are at least twice as large as your cows".
The conversation has, meanwhile, almost died when the Texan sees a herd of kangaroos hopping through the field. He asks, "And what are those"?
The Aussie asks with an incredulous look, "Don't you have any grasshoppers in Texas"?