Question

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 and scored 30 marks and get 10 correct answers. ii. Jay also answered all the questions and scored (-12) marks though he got 4 correct answers.How many incorrect answers had they attempted?

Answer 1

Answer:

10

Step-by-step explanation:

Marks given for one correct answer = 5

So, marks given for 10 correct answers  

= 5 * 10 = 50

Radhika's score = 30

Marks obtained for incorrect answer

= 30- 50 = -20

Marks given for one incorrect answer  

= (-2)

Therefore, number of incorrect answers=-20/-2 = 10