algebra

From: brook <cameronholbrook123@xxxxxxxxx>
Date: Wed, 24 Jan 2007 19:36:10 EST

there are 53 pairs of shoes of which 24 are new, 21 are heels and 16 are white. If there are 3 worn, white heels, what is the probability of choosing a new or white pair of shoes? (shoes are in pairs, not single)
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