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:(i) Radhika scored 20 marks. If she has got 12 correct answers, how many questions has she attempted incorrectly?
Answers
Answered by
0
Answer:
20 questions
Step-by-step explanation:
12 correct answers means 12*3=36.
total marks scored is 20. then wrong answers are 16. that means 8 questions are wrongly answered. so total questions answered by Radhika is 20.
Answered by
1
Answer:
i) 3×12= 36
20-36= -16
= -2
(-16)÷(-2)= 8
ii) 3×7= 21
-5
-5-21= -26
-2
(-26)÷(-2)= 13
your answer but sorry I didn't mention the statement but if you are not able to understand than tell. than I will answer with statement. ok!
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