Choose the four factor pairs of 42. A. 1 and 42
B. 2 and 21
C. 3 and 14
D. 4 and 12
E. 5 and 8
F. 6 and 7

the factors of 42 in pairs are (1, 42), (2, 21), (3, 14) and (6, 7).

Step-by-step explanation:

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step-by-step explanation:

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percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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