Singular or plural?
I just encountered a problem that I have often thought about:
For example, this sentence: "The length (sing.) of the lines is…" or "The lengths (pl.) of the lines are"
My hypothesis: The first sentence is correct if both lines have the same length, and the second is correct if they have different lengths. Is that correct?
This is often the problem of text tasks in mathematics teaching. (I now replaced the word routes by pages)
Example:
In an equilateral triangle, the length of the sides is 30cm. How long is a page? How much percent do you have to extend each side so that the size is 33cm?
From the context you realize that the overall length is meant.
In my opinion, it can also be said that the first means the total length of the routes (i.e. if you calculate everything together) – the second sentence refers to the separate routes (i.e. each one).
You realize that the first sentence is misunderstood and must therefore be explained, but the second one is not.
So to 1.)
The total length of the routes is …
The length (section) of the routes is …
At the first sentence, I would expect the Total length the route is meant. In the second, the length of the individual lines should follow.
I’d agree with you right now.
Yeah, differently, it makes little sense.
If you mean two routes, you will need to use the extra if you only mean one, the payout, regardless of the length.