Mathematics: Bingo uses the numbers 1 to 75. if you randomly select a number, what is the probability it will not be a multiple of 7? express your answer as a fraction.

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Bingo uses the numbers 1 to 75. if you randomly select

Ответ:

roxanneee2145

14.03.2022

Mathematics

$\text{The probability that the selected no. is not a multiple of 7 = }\frac{13}{15}$

Step-by-step explanation:

Numbers used by Bingo for selection = 1 to 75

Multiples of 7 from 1 to 75 : 7, 14, 21, 28, 35, 42, 49, 56, 63, 70

No. of multiples from 1 to 75 = 10

Total numbers from 1 to 75 = 75

$\text{Probability that the selected no. is multiple of 7 = }\frac{10}{75}\\\\\text{Probability that the selected no. is not a multiple of 7 = }1-\frac{10}{75}\\\\=\frac{75-10}{75}\\\\=\frac{65}{75}\\\\=\frac{13}{15}$

$\text{Hence, The probability that the selected no. is not a multiple of 7 = }\frac{13}{15}$

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Bingo uses the numbers 1 to 75. if you randomly select a number, what is the probability it will not be a multiple of 7? express your answer as a fraction.

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