In a test of x questions , y(<x) answers are correct. Assuming all questions were answered, the number of incorrect answers are
Total number of questions answered = correct + incorrect
x = y +incorrect answers
⇒ incorrect answers = x-y
In a test, +4 marks are given for every correct answer and -2 is given for every incorrect answer. If Alex answered all the questions and scored 30 marks and got 10 correct answers. How many answers were incorrect?
Question 132
In a test, +3 marks are given for every correct answer and - 1 mark is given for every incorrect answer. Sona attempted all the questions and scored +20 marks, though she got 10 correct answers. How many incorrect answers has she attempted? How many questions were given in the test?
In a test, (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. i. Radhika answered all the questions, scored 30 marks and got 10 correct answers ii. Jay also answered all the questions, scored (-12) marks though he got 4 correct answers. How many incorrect answers they attempted together?