Question

In a class test containing 10 questions, 5 marks are awarded for every correct answer and (-2) marks awarded for every incorrect answer and 0 for questions not attempted.

(i) Mohan gets 4 correct answers and 6 incorrect answers, what is his score?
(ii) Reshma gets 5 correct answers and 5 incorrect answers, what is her score?
(iii) Heena gets 2 correct answers and 5 incorrect answers out of the seven questions she attempts. What is her score?

Answer 1

Answer:

ஃ, i) Mohan's score = 8

ii) Reshma's score = 15

iii) Heena's score = 0

Step-by-step explanation:

i) Mohan's score = ( 4 × 5 ) + ( 6 × ( -2 ))

= 20 + ( -12 ) = 8

ii) Reshma's score = ( 5 × 5 ) + ( 5 × ( -2 ))

= 25 + ( -10 ) = 15

iii) Heena's score = ( 2 × 5 ) + ( 5 × ( -2 ))

+ ( 7 × 0 )

= 10 + ( -10 ) + 0 = 0