Question

In a test every (+5) marks are give for every correct answer and(-3) marks are given for every incorrect answer.
1.Sheila answered all the questions and scored 38,Though she got 10 correct.
2.Jay also answered all the questions and scored (-16) marks though he got four correct answers.How many incorrect answers they had attempted?

Answer 1

Step-by-step explanation:

Marks given for one correct answer = 5

So, marks given for 10 correct answers

= 5 X 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