Posted by **chris** on Monday, March 23, 2009 at 10:57am.

Four quilters are preparing patches for a quilt. When finished, the quilt will contain 200 patches. The quilters’ contributions thus far are in the table below.

Name Number if patches

Lia 65

Brian 17

Elle 88

len 6

Find the probability that a randomly chosen patch:

1. Will have been sewn by Elle?

2. Will not have been sewn by Lia?

3. Will have been sewn by Brian or Len?

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