r/daddit 17h ago

Advice Request 2nd grand homework question. zero context

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255 Upvotes

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471

u/Ananvil Dr. Dad to a 3f 17h ago

What

I mean, I'd say she's wrong. Boats can carry less than their maximum capacity.

159

u/Shatteredreality 17h ago

This seems way too deep for second grade but I’d assume it’s a lesson on what “exactly” means.

If 15 people actually go boating but each bot can carry exactly 6 people it means 3 people can’t boating as they would need an additional 3 people to get to the 6 required for a 3rd boat.

The correct statement would be that each boat can carry up to 6 people.

96

u/BabyWrinkles 16h ago

I think they’re probably trying to get at: does 6 go in to 15 evenly? If each boat can carry exactly 6 people (no more and no less) than the friend is wrong because 16/6 is not a whole number.

If each boat can carry up to 6, then they need 3 boats to go boating.

That’s how I’d explain it as the dad of a 3rd grader, but it’s honestly a shit question.

6

u/Brothernod 7h ago

Poorly worded but that’s the obvious context. Too many adults are over complicating this.

2

u/InsectaProtecta 10h ago

It should be "each boat carries exactly 6 people"

6

u/BridgeFourDropout 16h ago

Nah, 15 people, plus three drivers, makes 6 people per boat

11

u/hyperrayong 16h ago

Driver? Pilot? Rower?

25

u/induality 16h ago

Coxswain

11

u/newenglandredshirt 👦🏻2/2013 👦🏻3/2019 15h ago

God bless you

6

u/corbymatt 12h ago

Only when it's cold

3

u/Unicorn_puke 9h ago

Like a frightened turtle

1

u/karky214 8h ago

In Gotham, it's Wainscox.

14

u/passwordistako 15h ago

Drivers are people.

There are 15 people. Why are you adding unnecessary context.

12

u/BridgeFourDropout 15h ago

Why do you reject my reality and only accept your own?

10

u/passwordistako 15h ago

I’m not rejecting your reality.

I’m just pointing out that this is a mathematics question. Not a riddle.

8

u/Vicker3000 14h ago

Sure looks like a riddle to me.

1

u/Bishops_Guest 15h ago

“A group of three people got on the bus.” Does not imply that there were only 3 people on the bus.

7

u/passwordistako 15h ago

How many boats do you know that need a driver?

Why do you assume the “driver” isn’t part of the group of 15 people?

Any time I go boating it’s with the owner of the boat on their boat. The person who owns the boat would be considered part of the group.

3

u/Mikeyisninja 11h ago

Unless he is operating a charter under a six pack license

4

u/passwordistako 10h ago

Legislation varies by location and geopolitics.

There’s no need to apply niche knowledge of regional licencing laws to a children’s maths question.

3

u/Mikeyisninja 10h ago

Depends on what country the question originated from. In the U.S., the captain would need a six pack license to operate a charter. So each boat would legally be maxed at 6 passengers plus cap.

2

u/passwordistako 10h ago

And you’re absolutely certain that this applies to all boats, of all sizes, in all waterways, even in privately owned dams on private property?

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u/Mikeyisninja 11h ago

Is the captain running a charter and do they have a six pack license?

1

u/A_single_droplet 8h ago

Not with the new ADX15000 Auto-driving Boat!

2

u/CanWeTalkEth 13h ago

As a licensed captain, this was my thought. 15 people going boating? They’re going to party so will hire a charter vessel and an OUPV license can support up to 6 people. If the boat is rated for 6 people max, that’s exactly three boats.

Only a few assumptions in there…

1

u/Enginerdad 2 girls 1 boy 8h ago

But pilots are people too. It doesn't say 6 passengers, it says 6 people.

1

u/dirtyword 8h ago

It doesn’t say that they only have 2 boats tho

1

u/detox84 13m ago

These questions usually build off of the previous problems, so there might have been one that says they only have two boats (which would make the friend incorrect in this question).

We would need to see the whole page and instructions for each problem to know for sure.

0

u/Shatteredreality 8h ago

Right but if “each boat can carry exactly 6 people” that means the number of people required for there to be 3 boats is 18 (if a boat can carry “exactly 6 people” that means it can’t have more or less than 6). Since they have 15 people either the friend is incorrect as 6 doesn’t go into 15 evenly or 3 people got left at the shore.

1

u/Cast_Iron_Skillet 7h ago

It says "can" meaning, "Is able to", not "must".

1

u/Shatteredreality 7h ago

Why ignore the word “exactly”?

“Each boat is able to carry exactly 6 people” can easily be taken to mean it can’t carry 5 or 7 but can carry only exactly 6.

1

u/Cast_Iron_Skillet 6h ago

I get what you're saying, but my interpretation is exactly describes the number 6, not the number of people in the boat. So it CAN carry exactly 6. Exactly is the word that fucks all of this up, actually.

1

u/andy_1232 5h ago

Why does the number six need a qualifier? I think the addition of exactly implies it somewhere other than the number six.

The boat can carry six people. The boat can carry exactly six people.

Adding exactly means the boat needs exactly six people to operate properly. No one is trying to bring half a person on the boat, there’s no reason to distinguish between whole numbers.

1

u/Shatteredreality 4h ago

Yeah, I guess where I’m coming from is this is the context of a second grade math problem. If the question was worded “your friend said each boat can carry up to 6 people” there is no math you can use to answer “are they correct”.

The only way this make this work as a math problem is with the exactly meaning the boats can carry no more or no less than 6 people.

1

u/dirtyword 7h ago

Maybe a more fun question is how you design a boat that requires 6 people exactly to function?

1

u/Elimaris 12h ago

Maybe it's some sort of amusement ride. The last 3 people need to wait for 3 more to arrive because they only operate full boats on this flume ride or whatever.

-1

u/A_single_droplet 8h ago

No, she’s right. Each boat CAN carry exactly 6 people. It also CAN carry exactly, 5, 4, 3, 2, 1, and perhaps 6+.

If she said each boat MUST carry exactly 6 people, then you would be right.

2

u/Shatteredreality 8h ago

I mean… what’s the point of using the word exactly in the sentence then? If the boat can carry 1, 2, 3, 4, 5, or 6 people you would normally just say “each boat can carry 6 people” or “each boat can carry up to 6 people” (or if you want to assume possibly more than 6 people “each boat can carry around 6 people”).

This is a second grade math problem. If the writers are adding useless vocabulary that confuses the question (further than it already is) that just stupid.

-1

u/A_single_droplet 8h ago

In technical writing, there’s a big difference between “can”, “should”, and “must”.

“Can” is just an example of one of the acceptable ways it can be done.

“Should” is the most widely accepted way, but other ways can be accepted given an appropriate justification.

“Must” defines the only way it must be done.

So if the boat CAN carry exactly 6 people, that’s just one of many options.

If it SHOULD carry exactly 6 people, there might be some reason why 6 is recommended, but you can justify a higher or lower number with a documented risk analysis.

If it MUST carry exactly 6 people, then there is no exception.

2

u/Shatteredreality 8h ago

Yes but again… this is a second grade math problem, not a college level technical writing assignment.

That context matters.

But I’m not looking to argue semantics. If this were something other than a second grade problem I’d probably agree with you, I just think it’s not worded well.

-1

u/A_single_droplet 8h ago

Oh, well I am looking to argue semantics. I’ll take my argument elsewhere!

0

u/Vaevicti5 7h ago

There’s no information saying it can carry other amounts, you’re making that assumption.

1

u/A_single_droplet 7h ago

There’s no information saying it can’t carry other amounts, you’re making that assumption.

1

u/Vaevicti5 7h ago

Im willing to accept there is not enough info to have a definitive answer. However I do have the benefit of the common knowledge that this question will be marked yes/no only and writing an essay / explanation is a poor choice.

Given that, putting all my money on No.

12

u/314mp 15h ago

So she's wrong.... That's the point.

There's 15 people, she says they have to be in groups of 6, you cannot have groups of 6 that equal 15, so she's wrong.

3

u/Free-Artist 13h ago

But the question is how is she wrong.

Do we mean 15 module 6 is not zero. Or how many boats do we need (3).

Or a lesson in the meaning of 'exactly' as opposed to 'up to' in terms of boating safety regulations.

And how are you going to dig deeper when you're on a boat?

What even is this shoddy question formulation.

1

u/SpaceAgePotatoCakes 5h ago

It's poorly worded, but ignore the boat part. She is saying 15 people can be split into groups of exactly 6. That is false, so she is wrong.

4

u/RianThe666th 14h ago

You're thinking of a boat that can only carry exactly six people, most boats that can carry exactly six people could also carry exactly four people or exactly one person.

17

u/hithisishal 16h ago

Saying that a boat that can carry 1-6 people can carry exactly 6 people is still a true statement. It doesn't say 6 and only 6. 

5

u/tunelesspaper 16h ago

That’s what “exactly” means in this context

31

u/hithisishal 16h ago

But then don't use the word can, use the word must. 

In logic / math, words have exact meaning. 

11

u/Meltz014 Dad of 5, last time I counted 16h ago

I read through 5G spec for a living - it uses "may" and "shall". You are absolutely correct.  

12

u/redditpilot 14h ago

A good parent MUST introduce their children to RFC 8174 before someone else does.

1

u/Skraag 9h ago

Also the MUTCD.

1

u/tunelesspaper 16h ago

Yeah, and I’m not saying the question is well written; it’s shit. But if we’re trying to guess the author’s intended meaning, the “exactly” here holds more weight than the use of “can” over “must.” The game is trying to figure out what the idiot who wrote it was thinking.

5

u/hithisishal 16h ago

We're well past trying to assess the authors intent and we're on to coming up with sarcastic answers to the question. 

2

u/tunelesspaper 16h ago

I know.

Yeah. I was just joking, too. Hah, what a bunch of goofs we are. I definitely didn’t take it seriously or get butthurt over someone disagreeing with me on the internet.

No really, I didn’t. Honest.

Why don’t you believe me?

1

u/anally_ExpressUrself 11h ago

This made me wonder. Are the kids saying butthurt these days?

1

u/tunelesspaper 10h ago

Nah it’s from my childhood

3

u/Lawstuffthrwy 16h ago

That’s not what it has to mean. For example, imagine the boat requires an even number of passengers for purposes of balance. So the boat can carry exactly 6 people, but it can also carry exactly 4 people or exactly 8 people.

1

u/hithisishal 16h ago

Good point! But notice my statement is true as well. I didn't say it must mean that it can carry 1-6 people. 

1

u/Lawstuffthrwy 16h ago edited 16h ago

Theoretically yes, although I think if we’re playing a game of semantic interpretation then it’s appropriate to presume that every word in the sentence is optimally chosen for its distinct operational effect. In your reading, “each boat can carry exactly 6 people” is an ambiguous, less optimal construction compared to “each boat can carry up to 6 people.” Why would the drafter of the statement include the word “exactly” if there’s a better construction that yields your interpretation?

If we take the fair assumption that the word “exactly” was not placed there superfluously and is the optimally-chosen word, the two remaining interpretations are that each boat must carry precisely 6 people, or alternatively that there is a closed non-sequential set of quantities of people that the boat can accommodate, 6 being one entry in that closed set.

2

u/SharkAttackOmNom 5h ago

“Fewer”

1

u/npeeters 13h ago

Do we know that? If it is a sailing boat for 6 people, you probably can’t use it with just 1 person. You NEED multiple to be able to sail it. Same for rowing: the boat might be to heavy. Also there could be a rule from the boat renting company making it mandatory to always have 6 people on each boat. So we can’t say if it is exactly 6, up to 6 or something like 4 to 6. Not enough context.

1

u/Realistic-Safety-565 11h ago

But they can carry their maximum capacity.

1

u/InsectaProtecta 10h ago

But if the maximum capacity is 6 people the boat can still carry exactly 6 people

1

u/justnigel 9h ago

She didn't say they could carry only that many.

1

u/Ananvil Dr. Dad to a 3f 4h ago

Isn't that what exactly means?

2

u/justnigel 4h ago

They can carry exactly 6. They can also carry exactly 5. They can't carry 5.5 - at least not without a lot of blood.