i think about 5929 ways
I would say 77 because if there are 77 books, you could put each different book in a different place 77 times.
5.This question is the same as asking how many factors does 18 have.18 has the following factors:1, 18, 2, 9, 3 & 6.Therefore you could pile the books 6 different ways.However, as the question says equal piles (plural) then I think we should probably discount 1 pile of 18 books, so the answer is 5.
Add all the books and divide by 4: 18 + 19 + 24 + 23 = 84; 84 divided by 4 = 21 books per stack
6
1kg
3000
yes there are many photos if you look on google images, books and history websites.
Use the factors of the number. Factors of 10 are... 1,2,5 & 10. Therefore they will stack either in 1 row of 10 books or 2 rows of 5.
I think becuzthere equall
10 stone is 63.5kg
1 mile is 1760 yards.
2 sets of equal sides