Question

In a true-false test containing 50 questions,Yash is to be awarded 2 marks for every correct answer and (-2) marks for every incorrect answer and 0 for not attempting any questions. If Yash secured 94 marks in a test, what are the 3 possibilities of his marking correct or wrong answer?

Answer 1

94=2x-2y
x+y<=50

x-y=47
1.x+y=50
then x=3/2....discard

2.x+y=49
x=1
y=48

3.x+y=47
x=0
y=47

4.x+y=45
x or y becomes negative...therefore discard

Answer 2

1)-he gaveonly 47 answers and they werecorrect .
2)-He gave 47 correct answers and 3 incorrect answers.
3)I DONT KNOW...