After visiting my Great Aunt...
After visiting my Great Aunt Annie, I travelled home in her old jalopy. The car was old and battered, it had a leak from the petrol tank, and I was stuck in second gear. This meant that I could only travel along at a steady 30 miles per hour and managed a paltry 20 miles per gallon of fuel. At the start of the journey I had placed exactly 10 gallons of fuel into the tank. I knew though, that the fuel tank lost fuel at the rate of half a gallon per hour. Just as I arrived home, the car stopped because it had run out of fuel and I had only just made it. How far was it from my Great Aunt's to my home?Correct answers: 29
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
A man walks into a drugstore a...
A man walks into a drugstore and asks the pharmacist for a pack of condoms. Paying for them, he bursts into laughter and walks out of the store. The next day he comes in again, again buys condoms, and again walks out laughing.
Thinking this is somewhat strange, the pharmacist asks his assistant to follow the man if he comes back. Sure enough, the man comes in the next day and walks out laughing. This time the assistant goes after him, returning 20 minutes later.
"So did you follow him?" asks the pharmacist.
"Yup."
"Where did he go?"
"Your house."
Thinking this is somewhat strange, the pharmacist asks his assistant to follow the man if he comes back. Sure enough, the man comes in the next day and walks out laughing. This time the assistant goes after him, returning 20 minutes later.
"So did you follow him?" asks the pharmacist.
"Yup."
"Where did he go?"
"Your house."