Question

In a class test +3 marks are given for every correct answer and (-2) are given for every incorrect answer and no mark for not attempting any questions. Anand scored 20 marks. If he has got 12 correct answers, how many questions has he attempted incorrectly?

Answer 1

Answer:

8 questions are incorrect

Step-by-step explanation:

(3*12) + (-2*x) = 20

36 - 2x = 20

-2x = 20 - 36

-2x = -16

x = -16/-2

x = 8.