Question

IN A CLASS TEST CONTAINING 10 QUESTIONS '3' MARKS ARE AWARDING FOR EVERY CORRECT ANSWER AND (-1) MARK IS FOR IN EVERY INCORRECT ANSWER AND '0' FOR QUESTIONS NOT ATTEMPTED
(1) GOPI GETS 5 CORRECT AND 5 INCORRECT ANSWERS. WHAT IS HIS SCORE ?

(2)RESHMA GETS 7 CORRECT ANSWERS AND 3 INCORRECT ANSWERS. WHAT IS HER SCORE?

(3)RASHMI GETS 3 CORRECT AND 4 INCORRECT ANSWERS OUT OF 7 QUESTIONS SHE ATTEMPTS. WHAT IS HER SCORE?​

Answer 1

Answer:

hope it help u

Step-by-step explanation:

i) Gopi gets 5 correct and 5 incorrect answers

To find his score

Since for every correct answer '3 marks are awarded '

For every incorrect answer '(−1) marks are awarded '

Total Score =5×3+5×(−1)

=15−5

=10

ii) Reshma gets 7 correct answer and 3 incorrect answers

To find his score

Since for every correct answer '3 marks are awarded'

For Every Incorrect Answer ' (-1) marks are awarded '

Total score =7×3+3×(−1)

=21−3

=18

iii) Reshmi gets 3 correct answer and 4 incorrect answers

To find his score

Since for every correct answer '3 marks are awarded '

For every incorrect answer '(−1) marks are awarded '

Total score =3×3+4×(−1)

=9−4

=5