Question

in an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. A student attempted all the 200 questions and scored in all 200 marks. The number
of questions he answered correctly was​

Answer 1

Answer:

Answer:- The student attempt 80 correct answers.

Answer 2

Answer:

A.T.Q.

correct answer=4

incorrect answer=-1

total question attempted=200

total score got =200

if the correct answer =x then incorrect answer= 200-x

So A.T.Q. 4x-(200-x)= 200

4x-200+x =200

5x =400

x =80

so the answered correctly =80

answered incorrectly=120