• In a test +3 marks are given for correct answer and -1 mark are given for every incorrect answers. Sona attempted all the quest

Question

• In a test +3 marks are given for correct answer and -1 mark are given for every incorrect answers. Sona attempted all the questions and scored +20 marks through she got 10 correct answers.

(a) How many incorrect answers has she attempted ?
(b) How many questions were given in the test ?

Give the correct answer….do not write wrong answer and unnecessary answer..OKAY !!

QUESTION FROM CLASS :- 7th BOOK….

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Quinn 11 months 2021-06-30T15:19:25+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-06-30T15:21:14+00:00

    Answer:

    a. 10

    b. 30

    this is the correct answer

    Step-by-step explanation:

    mark me as brainlist

    0
    2021-06-30T15:21:17+00:00

    Answer:

    • In a test +3 marks are given for correct answer
    • 1 mark are given for every incorrect answers.
    • Sona attempted all the questions and scored +20

    she get 10 correct =10×3=30

    20=30(1)x

    2030=1x

    10=1x

    x=10

    incorrect answers has she attempted =10

    total questions in test =20+10=30questions.

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