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24 November, 16:05

In a mechanic engineering school, the ratio

of female/male students is 1:6. There are

497 students in total, calculate how many

female students there are?

Select one:

O a. 75

O b. 71

O c. 78

O d. 77

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Answers (1)
  1. 24 November, 16:30
    0
    Correct answer: b. f = 71

    Step-by-step explanation:

    Given:

    Let be female variable y

    Let be male variable x

    y : x = 1 : 6 ⇒ x = 6 y

    x + y = 497

    6 y + y = 497

    7 y = 497

    y = 497 / 7 = 71

    y = 71 female

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