Posted by **rama** on Tuesday, January 29, 2013 at 10:02pm.

A bag got mix up 6 pairs of shoes – 2 red, 2 blue, and 2 purple. Picking randomly, how many shoes must I pick before for sure that there is one matching pair in red or blue?

Ms Sue answered 4. Request for explanation please.

- math -
**Ms. Sue**, Tuesday, January 29, 2013 at 10:13pm
With 3 picks she could have gotten 1 red, 1 blue, and 1 purple shoe. On the 4th pick, she has to pick one of the colors she already had. Therefore, it will take 4 draws before she'd be sure she had a pair.

- math - correction -
**Ms. Sue**, Tuesday, January 29, 2013 at 10:20pm
I just read it again -- to see that you must have a matching pair in red or blue.

You'll need 5 picks instead of 4.

- reply-math -
**rama**, Tuesday, January 29, 2013 at 10:55pm
Sue,

there are possibilities beyond what you may have quoted...did i misunderstand here?

## Answer This Question

## Related Questions

- math - A bag got mix up 6 pairs of shoes – 2 red, 2 blue, and 2 purple. Picking ...
- math-old - A bag got mix up 6 pairs of shoes – 2 red, 2 blue, and 2 purple. ...
- math-followup - A bag got mix up 6 pairs of shoes – 2 red, 2 blue, and 2 purple...
- math - Ryan reaches into his gym bag for a pair of running shoes. If there are ...
- math 12 - Ryan reaches into his gym bag for a pair of running shoes. If there ...
- 5th grade math - Pete looked at the colors of the shoes worn by his classmates. ...
- Math - Joey has 4 pairs of pants,6 shirts, and 2 pairs of shoes, but only 1 ...
- math - Sams shoes makes a profit of 38$ on every pair of athletic shoes it sells...
- math help - Leo purchased 5 shirts, 3 pairs of plants, and 4 pairs of shoes. ...
- math - While shopping, you purchase 4 pairs of jeans, 6 shirts, and 3 pairs of ...

More Related Questions