In a class test (+4) marks are awarded for every correct answer and (-1) marks are given for every incorrect answer and no marks for not attempting any question.
Meera scores 15 marks in this test, though she got 7 correct answers. How many questions has she attempted incorrectly?
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Answer:
she attempted 13 questions incorrectly
Step-by-step explanation:
given total marks=15
questions answered correctly=7
hence marks she should get according to correct answers=7×4=28
marks deducted 28-15=13
hence when marks deducted for every every wrong answer hence wrong answers 13
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