Question

In a class test (+3) marks for every correct answer and (-2) marks for every incorrect answer and no marks for not attempting question. (i) Radika attemped 20 marks.If she got 12 correct answers,how many questions has she attempted incorrectly? (ii) mohan scores (-5) marks in this test,though she has got 7 correct answers.How many questions has she attempted incorrectly?​

Answer 1

Answer:

Firstly Radhika attempt 20 marks

FOR CORRECT ANSWER THERE IS +3 ADDED

THEN FOR INCORRECT THERE IS - 2

so A.T.Q

ANS IS 4 QUES BCOZ THERE IS -2 FOR INCORRECT ANS -2×4 = 8

ii) ans is 13