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09-08-2016
Mathematics

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A singer has memorized 12 different songs. If every time he performs he sings any three of these songs, how many different performances can he give?

A- 4
B- 12
C- 110
D- 220
E-440

Respuesta :

09-08-2016

The answer is 4 if the singer doesn't repeat any songs they already played.

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