Question

In a mathematics test, there are 60 questions. There is 2 marks for every correct answer and 1/3 mark is deducted for each unattempted question Or wrong question. If zaheer got 50 marks, how many questions did he answer correctly

Answer 1

Step-by-step explanation:

let the no. of correct answers be x

and no. of wrong answers be y

according to the condition

x+y=60

x=60-y

2x -1/3y=50

eqn 1

putting the value of xx in ------ eqn 1

2(60-y)-1y/3=50

120-2y-1y/3=50

-2y-1y/3=-70

-6y-y/3=-70

-7y=-210

y=30

putting the value of y in ------ eqn 1

x=60-30

x=30

Therefore the number of questions he answered correctly is 30.

If you are satisfied with the answer please mark me brainliest.

Answer 2

Step-by-step explanation:

let correct answer= x

wrong/ unattempted= 60-x