There are 40 questions on a class test. Six points are given for each correct answer and three points are deducted for each wrong answer. Find the number of correct answers for a test score of 105.

Answer 1

correct --- x
incorrect --- 40-x

6x - 3(40-x) = 105
6x - 120 + 3x = 105
9x = 225
x = 25

25 correct , 15 wrong

Answer 2

5-2(12-5)=39
5-24+2=39
7=63
9
I Need to know am I right

Answer 3

correct --> x
incorrect --> 40 - x

6x - 3(40 - x) = 105
6x - 120 + 3x = 105
9x = 225
x = 25

There are 25 questions correct, and there are 15 questions incorrect due to 40 - 25 being 15. It's math, so respect it.