in a class test (+3) marks are given for every correct answer and (–2) Marks are given for every incorrect answer and no marks for not attempting any question. Radhika scored 20 Marks if she has Got 12 Correct Answers, How Many questions has she Attempted incorrectly?
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3
Answer:
8
Step-by-step explanation:
Marks for correct answer = 3
Marks for incorrect answer = –2
ATP,
Radhika got 12 correct answers.
Marks she scored = 20
Marks she would score without any incorrect answer = (12 × 3) = 36
THRFE,
Difference in the marks = (36 – 20) = 16
THRFE,
No. of incorrect answers = (16 ÷ 2) = 8
She got 8 incorrect answers.
Index:
ATP: According To Problem
THRFE: Therefore
No.: Number
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