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
Soldier Stands Guard
A new soldier was on sentry duty at the main gate. His orders were clear. No car was to enter unless it had a special sticker on the windshield. A big Army car came up with a general seated in the back. The sentry said, "Halt, who goes there?"
The chauffeur, a corporal, says, "General Wheeler."
"I'm sorry, I can't let you through. You've got to have a sticker on the windshield."
The general said, "Drive on!"
The sentry said, "Hold it! You really can't come through. I have orders to shoot if you try driving in without a sticker."
The general repeated, "I'm telling you, son, drive on!"
The sentry walked up to the rear window and said, "General, I'm new at this. Do I shoot you or the the driver?"