n8it odd positrve hmbersIn a competitive examination, 5 marks are awar

1.	n8it odd positrve hmbersIn a competitive examination, 5 marks are awarded for each correct answer, while 2 hariare deducted for each wrong answer Vidhya answered 120 questions and got 348 rharHow many questions did she answer correctly?
Answer» let he answered x correct and y incorrect answers x+y=120....... (1) and 5x-2y=348....... (2) multiplying eq.1 by 2 and adding to eq.2,we get 7x=588x=588/7x=84 put in eq. 184 + y=120y=120-84y=36

n8it odd positrve hmbersIn a competitive examination, 5 marks are awarded for each correct answer, while 2 hariare deducted for each wrong answer Vidhya answered 120 questions and got 348 rharHow many questions did she answer correctly?

Answer»

let he answered x correct and y incorrect answers

x+y=120....... (1)

and

5x-2y=348....... (2)

multiplying eq.1 by 2 and adding to eq.2,we get

7x=588x=588/7x=84

put in eq. 184 + y=120y=120-84y=36