Question

In a competitive exam of 40 questions, +3 is awarded for a correct answer and -1 for every wrong answer. Find the total score if a student had 11 wrong answers in his attempt of all questions.

Answer 1

Answer:

-1×11 = -11

and for correct one 29×3 = 87

so , 87-11 = 76

Answer 2

⠀⠀⠀ ⠀ ☛ ...Given... ☚⠀⠀ ⠀

✂⠀Total number of questions = 40

✂ ⠀Marks for every correct answer = + 3

✂ ⠀Marks for every wrong answer = - 1

⠀⠀⠀⠀ ⠀ ⠀⠀ ⠀⠀⠀

⠀⠀ ⠀⠀ ☛ ...To find... ☚⠀⠀

✂⠀Total score if the student had 11 wrong answers in his attempt of all questions...

⠀⠀⠀⠀ ⠀ ⠀⠀ ⠀⠀⠀

⠀⠀ ⠀ ☛ ...SoLution... ☚⠀⠀

✂⠀Number of wrong answers = 11

✂⠀Number of correct answers = 40 - 11

⠀⠀⠀⠀⠀ ⠀ ⠀⠀ ⠀⠀⠀⠀⠀⠀⠀ ⠀ ⠀⠀= 29

✰✰ Marks for correct answers = 29 × 3

⠀⠀⠀⠀⠀⠀⠀ ⠀ ⠀⠀ ⠀⠀⠀⠀⠀⠀⠀ ⠀ = ⠀87⠀ ⠀

✰✰ Marks for wrong answers = 11 × -1

⠀⠀⠀⠀ ⠀ ⠀⠀ ⠀⠀⠀ ⠀⠀⠀⠀ ⠀ ⠀ =⠀- 11

The marks attempt by student = 87 - 11

⠀⠀⠀⠀ ⠀ ⠀⠀ ⠀⠀⠀⠀ ⠀⠀ ⠀⠀⠀= 76

Therefore, total marks attempt by the student will be 76...

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