In a class test (+3) marks are given for every correct answer and (-2) marks given for every incorrect answer and no marks for not arrempting any question. (i) Radhika scr
ored 20 Marks. If she has got 12 correct answers, how many questions has she attempted incorrectly? (ii) Mohini scores (-5) Mark's in this test, though she has got 7 correct answers. How many questions has she attempted incorrectly?
Answers
Answered by
2
Answer:
1) Radhika scored 12×3=36 marks. as 3 marks are for correct answer
final score of radhika is 20.
she got 16 marks negative. as −2 marks are for incorrect answer
therefore she made
2
16
=8 incorrect answer.
2) Mohini scored 7×3=21 marks. as 3 marks are for correct answer
final score of radhika is −5.
she got 26 marks negative. as −2 marks are for incorrect answer
therefore she made
2
26
=13 incorrect answer.
Answered by
0
Step-by-step explanation:
1) she scored 20 Mark's
correct were 12
12 ×3 = 36 , as 3 Mark's are for correct attempt
36-20 = 16
incorrect were = 16
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