Respostas

2013-12-10T09:47:25-02:00
A) primos: 2, 3, 5, 7, 11, 13, 17, 19 e 29
Então P = 9/30 = 3/10 ou ainda 30%

b)múltiplos de 6: 6, 12, 18, 24 e 30
Então P = 5/30 = 1/6 ou ainda 16,66%

c) Pares: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28 e 30
P = 15/30 . 5/30 = 75/900 = 8,33%

d) P = 15/30 + 5/30 = 20/30 = 66,66%
d)
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