View Full Version : How many jelly beans in a jar?
gdpt-
Oct 27, 2007, 03:06 AM
Alice, Ben, Charlie, David, and Ed entered a contest to guess how many jelly beans are in a jar. Alice guessed 30, Ben guessed 28, Charlie guessed 29, David guessed 25, and Ed guessed 26. Two were off the mark by 1, one was wrong by 4, and one by 3. But one was correct. How many jelly beans are in the jar at the store?
:photo:
minh quan online
Oct 31, 2007, 12:28 AM
co' 29 jelly beans in the jar
gdpt-
Nov 1, 2007, 10:38 AM
Hahahah, giỏi :)
:rockon:
Handsome Bear
Nov 1, 2007, 11:03 AM
gd and mq have $21 between them. gd has $20 more than mq. How much does each one has?
Handsome Bear
Nov 1, 2007, 11:21 AM
50 cent for mq and $20.50 for gd.
hahaha, sao lại tự mình đố, rồi tự mình giải thế kia.
Handsome Bear
Nov 1, 2007, 11:28 AM
You have 8 billard balls. One of them is defective, meaning that it weighs more than the others. How do you tell, using a balance, which ball is defective in TWO weighings?
snowdrop_14
Nov 1, 2007, 12:15 PM
weigh 3 balls/3balls if they are equal in weight, it means that one of the two balls left is defected. Just weight that two balls the heavier is the one that is defected
as if these 3balls/3balls are different in weight, take the 3 heavier balls, and weigh 1 to 1. If these two are equal, the ball that you didn't weigh is defected.
Or if there are different in weight, the heavier billard ball is the defected ball.
Handsome Bear
Nov 2, 2007, 02:49 AM
Great job, Snow. How about this one:
Handsome Bear wants some candies for hallowing. He saw 5 jars of identical candies in a kitchen cabinet. He pulled up a chair and tried to reach the jars, but Mother Bear stopped him. She said:
"Each candy weighs 1 grams.
"One jar contains a different batch of candies, which weighs only 0.9 gram each.
"Here is a scale. Use it to find me the lightest jar.
"However, my dearest Handsome, you have to figure it out with only ONE weighing.
"I'm watching you with a spanking stick, so honey Handsome Bear, don't you try to cheat"
How does Handsome Bear figure that out?:salute:
snowdrop_14
Nov 2, 2007, 04:05 AM
Name each Jar with each of the following number: 1, 2, 3, 4, and 5. Then take the amount of candies form each jar accordingly to their order in number.
Now take the 15 candies that you have from the total of 5 jars, then weigh them one time
If your weight comes out is:
14.9 gm the lightest jar is # 1
14.8 gm the lightest jar is # 2
14.7 gm the lightest jar is # 3
14.6 gm the lightest jar is # 4
14.5 gm the lightest jar is # 5
:eat:
Handsome Bear
Nov 2, 2007, 07:05 AM
Hi Snow. Handsome Bear chịu thua - Đầu hàng vô điều kiện. It took me a while to figure that out when I first saw it. :giveup:
Handsome Bear
Nov 2, 2007, 07:34 AM
Mother Bear needs 4 cups of milk to bake Handsome Bear a cake. She looks all over the kitchen and finds only two measuring cups: a 3-cup cup and a 5-cup cup. Being a perfectionist, she prefers not to estimate. She calls Handsome Bear and says,
Honey Handsome Bear
Would you be so dear?
Get me 4 cups of milk
I’ll bring you some beer.
How does Handsome Bear measure 4 cups of milk out of the 3-cup and 5-cup measuring cups? :help:
snowdrop_14
Nov 2, 2007, 11:52 AM
there are several ways to answer this problem:
Method 1:
you use 5cup-cup pour the milk into a bowl two times that will give you 10 cups of milk, then use the 3cup-cup take out 6 cups, this leaves you 4 cups of milk
Method 2:
You fill up the 5cup-cup with milk then pour into the 3cup-cup, that will leave you with 2 cups of milk. pour that two cups of milk into a bowl. repeat the same step, You'll have 4 cups of milk.
Method 3:
You fill up the 3cup-cup with milk then pour into the 5cup-cup, then fill up the 3cup-cup and then pour it into the 5cup-cup. It will leave you with 1 cup of milk, empty that 1 cup of milk into a bowl. then fill up the 3cup-cup with milk, then you'll have 4 cups of milk...
since the above methods are not acceptable:
here is my following answer
hmm
fill up the 5cup-cup with milk then pour it into 3cup-cup. that will leave you with 2 cups of milk in the 5cup-cup. now Empty that 3cup-cup then pour that 2cups remaining inside the 5cup-cup into the 3cup-cup. Now fill up the 5cup-cup with milk then pour it into the 3cup-cup (which now have only 1 cup of space left). tadaaaaaaaa now you have 4 cups of milk in the 5cup-cup... am i making any sense? ?
all this thinking.. can i have a beer yet? :drunk:
:eat:
Handsome Bear
Nov 2, 2007, 09:16 PM
IMPRESSIVE, Snow, but a lady shouldn't drink beer. How about a glass of Cabernet Sauvignon?
:thankyou:
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