Question

In an examination of 50 questions, every correct answer is awarded 4 Marks and 3 marks are deducted for each wrong answer. Suresh solves all 50 questions and gets 144 marks. So how many answers were correct?​

Answer 1

Answer:

36 Answer was correct

Step-by-step explanation:

4 marks obtained by 1 question

so 4 ÷ 144 = 36

Answer 2

Answer:

42

Step-by-step explanation:

let no.of questions he did correct =x

no.of questions he did wrong =y

x+y=50

now each right question gets 4 marks , so

marks for right questions is 4x

marks deducted for wrong questions is 3y

4x-3y=144

x+y=50

4x-3y=144

x=42,y=8

so crct ans is 42