4. In a competitive examination. (+4)
marks are given for every correct
answer, (-2) marks are given for every
incorrect answer and 0 marks for not
attempting the question
a) Ruchi scored 20 marks. If she
has got 12 correct answers, how
many questions has she attempted
incorrectly?
Answers
Answered by
5
14 questions she attempted incorrectly.
Answered by
7
Answer:
26
Step-by-step explanation:
26 qus
marks for correct ans = 4×12 = 48
marks deducted in wrong answering = 48 - 20 = 28
A/q, no of ans wrong = 28/2 = 14
then no of qus attempted = 14 + 12 = 26 question
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