Question

In a class test +3marks for every correct answer and -2marks for every incorrect answer and no marks for not attempt. Mohini scores -5marksin this test she was got 7 correct answers how many questions has she attempt incorrect

Answer 1

Answer:

correct answer = 7

Mark's for correct answer = 3

correct answer marks= 7×3=21

Mark's for incorrect answer = -2

answered incorrectly =x

total Mark's in test = -5

21+(x×-2) = -5

21 + -2x = -5

-2x = -5-21

-x = -26÷2

-x = -13

x = 13

( both side minus so got cancelled)

mohini got 7 correct answers = 7×3 = 21

mohini got 13 incorrect answers = 13 ×-2 = -26

her total score = -26+21 = -5

pls give it the brainlest answer