Question

In an examination, a student scores 4 marks for every
correct answer and loses 1 mark for every wrong
answer. If he attempts all 75 questions and secures
125 marks, the number of questions he attempted
correctly, is​

Answer 1

Answer:

40

Step-by-step explanation:

make the equations

4x-y=125

x+y=75

now find the value of x: it will give you the value of correct answers.

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