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
From The Blonde Files
After years of working for others and being passed over for promotions, Blonde John and his wife, Blonde Mary, decided to go into business together. After examining the classifieds, they bought a small candy stand, paying thirty cents for each box of candy and then selling it for thirty cents.
At the end of the day they were astonished to find that they had sold every box of candy – yet had exactly as much money as when they started.
“You see?” John snarled at his wife. “I told you we should have bought a larger stand!”