Engineering Mathematics References of Board Examiner: Problematical Recreations
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Problematical Recreations are series of mathematics problems published by Litton’s Industries in Aviation Week & Space Technology magazines during 1960s.
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Many problems there were used by examiners in the past licensure examinations for civil engineers. Some of them are the following:
1. THE ATOM SMASHER
A new kind of atom smasher is to be composed of two tangents and a circular arc which is concave towards the point of intersection of the two tangents…
2. THE ESCALATOR
Dr. Irving Weiman, who is always in a hurry, walks up an upgoing escalator at the rate of one step per second. Twenty steps bring him to the top…
3. THE BUG ON THE WALL
In a room, 40 feet long, 20 feet wide, and 20 feet high, a bug sits on an end wall at a point one foot from the other floor, midway between the sidewalls…
Fortunately, I was able to give those problems to my students during our review classes. So, I encourage the engineering students that are board exam takers to join the Steemit community to know more about the possible board examination problems that I will post here. For this day, here is one of the problematical recreations problems.
PROBLEMATICAL RECREATIONS 1
The men, Alvin, Bob, Chris and, with their wives Ana, Bea, Cindy buy some objects. Afterwards each finds that the average cost in rupees of the article he or she has purchase is equal to the number of his or her purchases. Alvin has purchased 23 more articles than Bea, and Bob has purchased 11 more than Ana. Each husband has spent 63 rupees more than his wife. Who is the husband of whom?
Try to solve this one if you are a mathematics enthusiast!
Hahahah, nice one @fojrance! You really made it happen. It's great to interact and engage with fellow engineer mathematicians here in Steemit. PS: I haven't solved the problem yet since I'm on mobile right now.
Hahaha, I'll be waiting for your solution bai. Resteem please. hahaha
Alvin (32 articles) - Cindy (31)
Bob (12) - Bea (9)
Chris (8) -Ana (1)
haha sakto ba?
Grabe mao ikaw na @jhon21! Pakopyaa ko bi hahahah
no solution is wrong jhon. hahaha
upvoted! for original articles about science, math, engineering and technology, please use #steemstem tag. It is also wise to put your reference and links to sources of your images if they are not your own. keep on steeming!
Ow, thank you sir! The images are in the magazine and I only subscribers can access to it. ahaha. so I linked the website instead. :)
Hala natay-an naman ko ani ser oy hahahaha this is a good start to exercise our Mathematical abilities here on Steemit!
Yay try nakog solve. Try lang ng try hahaha
And dont forget the #cebu tag diay ser :D
asa na imung solutions shei hahaa
hahahha nitaya naman ser oy
sir asa dapit makit.an ang problematical recreation sa site sa link nga imu ghatag? lisud man gud ang interface sa ilaha site? thanks