Question

In a class test containing 10 questions, 5 marks are awarded for every
correct answer and (-2) marks are awarded for every incorrect answer
and 0 for questions not attempted.
(i) Mohan gets four correct and si× incorrect answers. What is his
score?
(ii) Reshma gets five correct answers and five incorrect answers, what
is her score?
(iii) Heena gets two correct and five incorrect answers out of seven
questions she attempts. What is her score?

Answer 1

Answer:

(i) Mohan get 4 correct answer = 4\times5\ =20\4×5 =20

He gets 6 incorrect answer = 6\times\left(-2\ \right)=\ -126×(−2 )= −12

Total score = 20-12\ =\ 8\20−12 = 8

Thus, mohan get 8 marks in the class test.

(ii) For 5 correct answer = 5\times5\ =\ 255×5 = 25

For 5 incorrect answer = 5\times\left(-2\right)=\ -105×(−2)= −10

Total score = 25-10\ =\ 1525−10 = 15

(iii) Heena get 2 correct answer = 5\times2=\ 105×2= 10

Heena get 5 incorrect = 5\times\left(-2\right)\ =\ -105×(−2) = −10

Total score = 10\ -10\ =\ 010 −10 = 0

Thus, total score of heena is zero.

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