In an examination, a student scores 4 marks for every correct answer and loses

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

(1) 35

(2) 38

(3) 41

(4) 40

Question Posted / samuel krupakar

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In an examination, a student scores 4 marks for every correct answer and loses one mark for every w..

Answer / samuel krupakar

( 4 ) 40

Is This Answer Correct ?

19 Yes

2 No

In an examination, a student scores 4 marks for every correct answer and loses one mark for every w..

Answer / saddik

Let correct answers be T, then wrong answers will be 75-T.
Then 4(T) + -1(75-T) = 125
4T-75+T = 125
5T-75+75 = 125+75
5T = 200
T = 40

Is This Answer Correct ?

15 Yes

0 No

In an examination, a student scores 4 marks for every correct answer and loses one mark for every w..

Answer / neelam

Is This Answer Correct ?

8 Yes

1 No

In an examination, a student scores 4 marks for every correct answer and loses one mark for every w..

Answer / narsingh rao

let x be the number of wrong answers then (75-x)4-1*x=125
therefore x=35 and right answers =40 answer (4)

Is This Answer Correct ?

2 Yes

0 No

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