Here's the puzzle of the month from the April 1960 issue of Popular Science [UPDATE: Readers with a better memory than mine have pointed out that I posted this romper la cabeza in 2005.]
Luckily someone told me the answer to this one at the same time as the puzzle. Otherwise –– like the wife of one PS editor –– I might still be working on it:
The census taker, placing one weary foot after another, climbed the steps and rang the bell. “How many people live here?” he asked the person who answered the door.
“Three,” was a prompt answer.
“And their ages?”
The reply startled him: “the product of our ages is 225, while the sum is the same as the house number.”
The census taker looked up to check the number he had already noted on his tally sheet, “Hmm,” he said, “I need to know one more thing: are you the eldest?”
“Why, yes,” the person said. And the census taker, cheered at the novel answers, smiled as he wrote down their ages and walked away.
Puzzle of the Month (PopSci April 1960)
Alex Wood is an addict but won’t give up his smartphone. But he has five strategies for limiting its control over him: “I used to wake up tired. My body would ache and my head felt sore, like waking up with a hangover. Finally, I took control, like attending an AA class for addicts, I […]
We just got the Sport model of the EPIKGO hoverboard at my office. Besides being terribly chic, it’s apparently bulletproof.
Ok, it’s not just solar powered. It’s also an anti-theft, waterproof marvel that keeps my phone’s power bar from ever getting into the red.Sure the idea seems obvious now – tuck a gigantic solar powered battery pack into an exposed slot and turn the wearer into a walking energy harvester. Simple maybe, but I didn’t […]
The Lightning port has thus far resisted the cruel fate that befell the headphone jack, and despite rumors that it may be disappearing come iPhone 8, for the present and foreseeable future, Lightning cables are a hot commodity for iPhone users. As such, we must make do in this strange time in which long, glorified […]
All the filters in the world won’t save your smartphone pics from a shaky hand. To really step up your mobile photography game, you’ll need some kind of mount to hold it steady. You could buy a smartphone attachment for a conventional camera tripod, but who wants to carry that kind of gear everywhere they […]
The forced transition from analog to digital TV signals was probably met with relative indifference from people with Netflix subscriptions and the “I don’t even own a TV” snoots. But anyone living in the vast swaths of the country that don’t have guaranteed high-speed internet, broadcast TV is a perfectly valid (and 100% free) way […]