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+--- Thread: another puzzle (/thread-15880.html)
another puzzle - Don Shepherd - 11-11-2020 12:24 AM
My sister-in-law sent me this puzzle. She works in a dental office and the staff tried to solve the puzzle and got different answers (not surprizingly).
Here is the puzzle:
[attachment=8861]
RE: another puzzle - Thomas Okken - 11-11-2020 12:59 AM
109
(This line is filler because posting just that number is not allowed.)
RE: another puzzle - rprosperi - 11-11-2020 01:11 AM
Why not 112?
RE: another puzzle - Joe Horn - 11-11-2020 01:29 AM
(11-11-2020 01:11 AM)rprosperi Wrote: Why not 112?
I agree with Thomas (109) because:
Line 1: each measuring cup = 10
Line 2: each cookie (cooked or not) = 1
Line 3: subtract cup (10) and 12 cookies (12) from both sides: wooden spoon (?) = 5
Line 4: spoon (5) + cup (10) + 1 cookie = 16
Line 5: 9 cookies (9) + cup (10) × 2 spoons (10) = 9+10×10 = 109.
If left-to-right math is used ("chain mode"), you get 190.
RE: another puzzle - rprosperi - 11-11-2020 01:54 AM
Aha, I didn't notice that there were varying amounts of cookies on the trays, I thought 'tray of cookies' was a unit. Which made the puzzle silly.
Should have known... and it's rare that I miss details that involve cookies.
RE: another puzzle - Thomas Okken - 11-11-2020 02:06 AM
Maybe it's just a coincidence, but I've seen several puzzles like this lately, always involving some detail that turns out you have to count, like the cookies in this one. This one was a bit less sneaky than some of the others, in that the fourth equation provides a hint that something is up. If "tray of cookies" were a unit by itself then that fourth equation would be redundant...
RE: another puzzle - Don Shepherd - 11-11-2020 02:38 AM
Thomas, I've got to hand it to you, you are da' man! I thought 112 like Bob (and my sister-in-law). She couldn't figure out why the girl that guessed 109 was the winner, neither could I until I saw your post and explanation (and Joe too).
You've got to pay attention to the details.
RE: another puzzle - rprosperi - 11-11-2020 03:03 AM
(11-11-2020 02:06 AM)Thomas Okken Wrote: Maybe it's just a coincidence, but I've seen several puzzles like this lately, always involving some detail that turns out you have to count, like the cookies in this one. This one was a bit less sneaky than some of the others, in that the fourth equation provides a hint that something is up. If "tray of cookies" were a unit by itself then that fourth equation would be redundant...
Yes, I looked and looked at the 4th line, and finally concluded it was simply extraneous info intended to distract; cookies will do that. Nowhere was it said that all information was necessary, although it's typically assumed to be so in these puzzles.
RE: another puzzle - Mjim - 11-12-2020 04:32 AM
Also got 112 like most others here, but for some reason those cookie trays looked like pills and the stirrer a toothbrush, so well I didn't even notice it as a tray of cookies until that was pointed out!
Still if that was the way they're playing it, why is the single cookie not on a tray...selective visualization, I call foul!
RE: another puzzle - toml_12953 - 11-12-2020 10:36 AM
(11-12-2020 04:32 AM)Mjim Wrote: Still if that was the way they're playing it, why is the single cookie not on a tray...selective visualization, I call foul!
But it looks like a chocolate chip or oatmeal raisin cookie! Surely you must make allowances for those yummy Bastions of Biscuitness!
RE: another puzzle - SlideRule - 11-12-2020 12:15 PM
Lotsa Pampered Chef Math using Pampered Chef Math Challenge as a Search Engine target. Give it a go!
Best!
SlideRule
RE: another puzzle - BruceH - 11-13-2020 11:59 PM
(11-11-2020 02:38 AM)Don Shepherd Wrote: You've got to pay attention to the details.
The trouble with paying close attention to the details is that row 4 starts to look like spatula plus jug plus petri dish of some horrible bacterial culture, probably botulism. ;-)
RE: another puzzle - cdmackay - 11-15-2020 05:14 PM
OT: I recently took the UK's amateur radio exams; there, it's common for them to put in a bit of extraneous detail, not needed to answer the question, deliberately to lead you astray.
Or, as they would no doubt put it, to make sure you understood it correctly
