Question

In an examination, a student scores 4 marks for every correct answer and loses I mark for every wrong answer. If he attempts in all 60 questions and secures 130 marks, the number of questions he attempts correctly, is:

A) 35 B) 38 C) 40 D) 42

Answer 1

Answer:

38

Step-by-step explanation:

Let No. of correctly answered Questions be x

So, No. of incorrectly answered questions is 60-x

Total marks scored for correct answers = 4x

Total marks scored for incorrect answers = -1(60-x) = x-60

Total marks = 4x + x - 60 = 5x - 60 = 130

or, 5x = 190

or, x = 190/5 = 38

Therefore, Total no. of Questions he attempted correctly is 38.

Answer 2

Answer:

for correct answer 4marks

looses for answer 1 mark

total number of questions attempts 60

let the number of questions attempts be x

x+x=130-60=70

2x=70

=35