The length of a cover letter should be around 2;3 paragraphs.
30 to 40 words
Sentence length is important to ease of reading in any document. It is even more important to be concise in a business letter. The average sentence length of a business letter should be between 12 and 15 words.
Average speed = d/t (distance covered in some period of time) divided by (the length of time to cover it)
An average couch is about average length
The average length of a vehicle is 17feet
Taking the average length of a car at 13.5 feet. 1000 / 13.5 = 74.1 so you would need 75 to cover 1000 feet.
The average length of a ruler is 12 inches.
The length that the novel of The Cancer Ward cover take is about 560 pages.
This question doesn't specifically define which meaning of average cover you are looking for. The meaning of average per cover in restaurants is the total number of sales divided by the cover per sale.
For adult females, the average step length is about 26 inches and the average stride length is around 52 inches. For adult males, the average step length is 31 inches and the average stride is 62 inches.
The average step length is taken as 30 inches.