I have a drawer which contains 40 socks in the following numbers and colors; 12 tan, 9 brown, 11 gray and 8 blu. suppose i'm blindfolded.What is the fewest number of socks I must pick from the drawer to be absolutly certain that i have 2 socks of the same color among those i have picked?
Please!
i need help ...
Do u use LCM?
2006-10-30 08:32:01 · 6 answers · asked by (: 2 in Education & Reference ➔ Homework Help
Five. The number of each color of socks is irrelevant. Since you have 4 different colors of socks, it is possible that after 4 picks you will have one of each color. The fifth sock you take MUST match one of the other four.
2006-10-30 08:39:02 · answer #1 · answered by sillycon_valley_nerd 2 · 2⤊ 0⤋
You have 4 colors and as left and right socks are the same......
Take 4 socks and all could have one of every color. The next will match one of the previous socks or you already have a pair.
5 is your answer.
But if you stay blindfolded: 2 is enough >:-)
2006-10-30 16:37:46 · answer #2 · answered by Puppy Zwolle 7 · 1⤊ 0⤋
5 socks. there's only 4 colors so if you pick one of each that's 4 socks and the 5th one has to be a repeat.
2006-10-30 16:43:11 · answer #3 · answered by viki 1 · 1⤊ 0⤋
there are 4 different color socks, so you would need to pick out 5 socks to guarantee a pair.
2006-10-30 16:47:15 · answer #4 · answered by Sir James the Dark 4 · 0⤊ 0⤋
It's a probability question and no you do not use LCM you need to use your percents.
2006-10-30 16:37:11 · answer #5 · answered by Anonymous · 0⤊ 2⤋
dont know
2006-10-30 16:39:06 · answer #6 · answered by Anonymous · 0⤊ 2⤋