Question

In a competition 3 marks are given for correct answers and no marks for attempting questions, sachin scored 24 marks . If he got 14 correct answers , how many questions has he attenpmpted incorrectly​

Answer 1

Marks for correct answer : 3

Marks for incorrect answer:-2

Marks for not attempting question:0

Total marks Sachin scored:24

No of correct answers :14

Marks for correct answers:14 x 3=42

Also,

Marks for incorrect answers=(-2) x no of incorrect answers

Marks for no attempt answer:0

Now,

Total marks=marks for correct answer +marks for incorrect answer

24=42+(-2) x no of incorrect answers

24-42=(-2) x no of incorrect answers

-18=(-2) x no of incorrect answers

-18÷-2=no of incorrect answers

9= no of incorrect answers

No of correct ans not correct = 9

Answer 2

Step-by-step explanation:

my ans is +9.

hope it help u