Question

in a competition 3marks are given for correct ans and (-2)are given for every incorrect ans no marks for not attending any que ( A)nalini score(-7)marks in compitation through she got 9 correct ans how many que she attempted incorrectly​

Answer 1

Answer:

she attempted 17 que incorrectly

Step-by-step explanation:

marks for correct answer=3

marks for incorrect answer=-2

que answered correctly=9

let incorrect answers=x

A/T/Q

9(3)+x(-2)=-7

27+(-2x)=-7

-2x=-7-27

-2x=34

-x=34÷2

-x=17