9) In her class test. Aruna got (-2) out of 25 marks. she had answered 20 out of 25 questions of which she was sure of 6 questions. The rest, she had guessed. Can you tell how many of Aruna's guesses were correct if she got 1 marks for correct and -1 for wrong answers. *
03
O2
0 1
04
Answers
Answered by
3
Answer:
yurr question's answer is 2
Answered by
1
Answer:
3
Step-by-step explanation:
total she got in test = (-2)
no. of total questions = 25
no. of questions she attempted = 20
no. of questions she was sure of = 6
no. of questions she guessed = 20-6
= 14
Marks she got for assured answers = 6 X (+1)
= 6
Marks she got for guessed answers = -6 -2
= -8
= 3 + (-11)
Marks she got for incorrect guessed answers = -11
Marks she got for correct guessed answers = 14-11
= 3 Ans. = 3
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