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. (i) Radhika scored 20 marks. If she has got 12 correct answers, how many questions has she attempted incorrectly? (ii) Mohini gets ten correct answers and ten incorrect answers, what is her score?

Answer 1

Answer:

i) 8 ii) 10

Step-by-step explanation:

i) Radhika scored 20 marks. She has got 12 correct answer which means she got 36 mark.

so 36-20=16

one wrong answer will cut 2mark so 16 mark cut from her 36 mark means she gave 8 wrong answer.

ii) 10 correct answer = 30 marks

10 wrong answer = -20 marks

so 30-20=10