The Saturday Night Jazz Band asked the music department of the community college to furnish a group of 3 trumpet players or a group of 4 saxophone players for prom weekend.
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8 choose 3 + 11 choose 4
Add because there is no overlap.
56 + 330 = 386
Add because there is no overlap.
56 + 330 = 386
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Just get them all. No thinking required. Problem solved. Crisis avertd.