What 5-digit number satisfies the following requirements?
What 5-digit number satisfies the following requirements? 1. No zeroes; 2. First two digits are the same; 3. Fourth digit is twice the first; 4. Last digit is twice the third; 5. Sum of all digits is 18Correct answers: 127
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
The dorm rules
On the first day of college, the Dean addressed the students, pointing out some of the rules:
"The female dormitory will be out-of-bounds for all male students, and the male dormitory to the female students. Anybody caught breaking this rule will be fined $20 the first time."
He continued, "Anybody caught breaking this rule the second time will be fined $60. Being caught a third time will cost you a fine of $180. Are there any questions?"
At this point, a male student in the crowd inquired: "How much for a season pass?"