a square garden is enclosed by a fence. each side of the fence has 10 posts. how many past are there?(the answer is not 40)
2006-10-18 23:11:44 · 15 answers · asked by wcs_fynest 1 in Science & Mathematics ➔ Mathematics
The answer is 36.
Let there are four sides. In clockwise direction - A, B, C and D. Now let there are 10 posts in A and C which are just opposite to each other. In middle i.e. in B and D you will be having 8 posts, Because they will be having one post common with both A and C. Therefore B or D will also 10 posts.
2006-10-18 23:16:31 · answer #1 · answered by Manik Ghosh 2 · 0⤊ 1⤋
Consider that each side "owns" only one corner post. That makes 9 unique posts per side and 9 x 4 = 36. A drawing is good but logic is better when paper and pencil are not handy.
2006-10-19 07:52:15 · answer #2 · answered by Kes 7 · 0⤊ 0⤋
You have to take the corners into consideration.
Say, 10 on the left, 10 on the right (parallel) and 8 at the top and bottom (to account for the 2 on each side already there). That's 36.
2006-10-19 06:15:11 · answer #3 · answered by unchained melody 2 · 1⤊ 1⤋
36
2006-10-19 06:15:26 · answer #4 · answered by dogfaceboy626 3 · 1⤊ 0⤋
10 * 4 = 40
there are 4 corners so
40 -4 = 36
Answer = 36
2006-10-19 07:37:26 · answer #5 · answered by stylish star 1 · 0⤊ 0⤋
38 posts as 1 post is common for two sides
2006-10-19 07:33:47 · answer #6 · answered by § mǎddy § 2 · 0⤊ 0⤋
its simple
Draw a square with dots but concentrate on each side
Answer is 10+9+9+8=36
Enjoy
2006-10-19 06:24:07 · answer #7 · answered by Jay 1 · 0⤊ 0⤋
Excluding the corner posts, very side has only 8 posts. (Total of 32). There are ONLY 4 conrner posts.
GRAND TOTAL : 36
2006-10-19 06:18:10 · answer #8 · answered by Anonymous · 0⤊ 0⤋
36.
The easiest way to solve this problem is to draw a picture.
OR
Without the corner posts each side has 8 posts. (4*8=32)
Then add the 4 corner posts (32+4=36)
OR
10+9+9+8=36
2006-10-19 06:13:16 · answer #9 · answered by Anonymous · 0⤊ 4⤋
36, assuming that a post would be considered a corner of the square and is counted for each indivdual side.
2006-10-19 06:13:41 · answer #10 · answered by Kevin Federline 2 · 1⤊ 2⤋