Question

In a class test containing 20 questions, 5 marks are awarded for each correct

answer and 2 marks is deducted for each wrong answer. If Riya get 15 correct
answers out of all the questions attempted. What is her total score?

Answer 1

Her total score is 65.

Explanation:

Out of 20 questions, Rita get 15 correct answer.

Riya get = 20-15=5 wrong answers.

according to the question,

5 marks awarded for each correct answer and 2 marks deducted for each wrong answer.

so, her total score = (15 * 5 = 75) - (5 * 2 =10)

= 75 - 10 =65

: therefore, her total score is 65.

Answer 2

Riya's total score is 65/100

Explanation:

You can calculate the total score for a class test by using the following formula:

(Let t = total score)

• t = (number of correct answers × marks per correct answer) - (number of wrong answers × marks per wrong answer)

In our case, if Riya got 15 correct answers out of 20 questions, then she got 5 wrong answers (20 - 15 = 5).

If each question is worth 5 marks for a correct answer and 2 marks for a wrong answer, we can plug in the numbers into the formula:

• t = (15 x 5) - (5 x 2) =?

Solving what is inside of the parenthesis gives us:

• 75 - 10 = 65

Therefore, Riya’s total score is 65 out of a possible 100.