Question

In a class test, multiple choice questions are given to the students. For every correct answer, 3 marks are awarded, but for every wrong answer 1 mark is deducted.

a. Akrish answered 14 questions correctly, but got 30 marks. How many of his answers were wrong?

b. Sunaina gets eight correct and seven incorrect answers out of 15 questions she attempted. What is her score?​

Answer 1

Answer:

a)12

b)17

Step-by-step explanation:

a)Given that,

For every correct answer ,3 marks are awarded

for every wrong answer 1 mark is deducted

but Akrish answered 14 question correctly

so Akrish got =(14 * 3)=> 42 marks

but in question he got 30 marks

given that for every wrong answer 1 mark is deducted

so he wrong answered=(42-30)=>12

12 of his answer were wrong

b)Given that ,

For every correct answer ,3 marks are awarded

for every wrong answer 1 mark is deducted

Sunaina gets 8 correct answers

so she got =(8*3)=>24 marks

Sunaina gets 7 incorrect answers

so she got =(7*1)=>7 marks deducted

so her score is =(24-7)=>17 Marks

Answer 2

Answer:

a. 12.

b. 17

Step-by-step explanation:

a. questions he answered correctly=14

marks obtained by him for correct questions = 14×3= 42

total marks obtained by him=30

questions he answered incorrectly= 42-30= 12

b. correct answers by her=8

marks obtained for correct answers= 8×3 = 24

incorrect answers by her=7

marks deducted for incorrect answers=7

total marks obtained by her=24-7= 17

~HOPE THIS HELPS~