Shaked
A small question in English Hi Fellas, Which way is the correct way to say?(If the first one, why?) "three digit number or "three digits number" "seven hour difference" or "seven hours difference" Thanx!
1. Nov. 2014 00:23
Korrekturen · 6
2

 I believe it is because they are collective nouns.

 

"One number with three digits", is restated as "A three digit number".

 

It is like "One classroom with six students" can be restated as " A six student classroom".

 

"A difference of seven hours" turns into "A seven hour difference"

1. November 2014
*helps
1. November 2014
That help too :) Thank you
1. November 2014
three digit number and seven hour difference are correct, but I cannot explain why! :)
1. November 2014
Anyone?
1. November 2014
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