A test has twenty questions for 100 marks, if
the test consists true / false questions of 3
marks each and multiple choi

By Anna

A test has twenty questions for 100 marks, if
the test consists true / false questions of 3
marks each and multiple choice questions of
11 marks each, then the number of
true/false questions is​

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Anna

2 thoughts on “A test has twenty questions for 100 marks, if<br />the test consists true / false questions of 3<br />marks each and multiple choi”

  1. Answer:

    Here is ur answer

    Step-by-step explanation:

    [tex]test \: has \: 100 \: marks[/tex]

    [tex]totl \: questions \: are \: 20[/tex]

    [tex]let \: mcq \: questions \: be \: x[/tex]

    [tex]let \: true \: or \: false \: \\ questions \: be \: 20 – x[/tex]

    [tex]so \: 11x + 3(20 – x) = 100[/tex]

    [tex]11x + 60 – 3x = 100[/tex]

    [tex]8x = 100 – 60[/tex]

    [tex]8x = 40[/tex]

    [tex]x = \frac{40}{8} [/tex]

    [tex]x = 5[/tex]

    [tex]if \: x \: is \: 5 \: the \\ \: number \: of \: true \: or \: false \: \\ questions \: are \: 20 – 5[/tex]

    [tex]so \: mcq \: questions \: are \: 5 \: \\ and \: the \: true \: or \: false \: questions \: \\ are \: 15[/tex]

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