An ordinary envelope
Logic
Level
2
Let A be the number of letters in "an ordinary envelope".
Let B be the number of letters in an ordinary envelope.
Find A - B.
The answer is 17.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
To find A, we have to count the number of letters in the phrase "an ordinary envelope". The first word has 2 letters, the second 8 letters, and the third 8 letters. 2 + 8 + 8 = 18 letters.
To find B, we have to know how many letters are in an ordinary envelope. People send one letter per envelope, so the answer is 1.
18 - 1 = 17.