Question

In a class test (+4) marks are given for every correct answer and (-2) marks are given for every incorrect answer and no marks for not attempting any questions. Amana answered all the questions and scored 30 though she got 10 correct answers. i) Number of questions she has attempted incorrectly is. ii) Number of questions given in the test​

Answer 1

Step-by-step explanation:

i) marks =30 so she got 10 correct so

10×4=40

incorrect answers=40-30=10

1 wrong ❌question =-2

so she wrote 2×5=10incorrect answers

ii) 0 see the question it says she answered all the questions

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