Question

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 (1)Radhika scored 20 marks if she has got 12 correct answer how many questions has she attempts incorrectly (2) Mohini score (-5) in this test through she had got 7 correct answer how many question has attempted incorrectly​

Answer 1

Answer:

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Step-by-step explanation:

adhika 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.