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 10 marks. If she has got 12 correct answers, how many questions has she attempted incorrectly?
Answers
Answered by
1
Answer:
13 question she has attempt incorrectly.
not sure about answer.
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Answered by
1
Answer:
ans is 13
Step-by-step explanation:
as marks given for correct ans is 3
correct ans by Radhika is 12
so 12 X 3= 36
36 + (-2x ) = 10
36 - 2x = 10
-2x = 10 -36
-2x= -26
x= -26/-2
x= 13
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