Question

12. In a test, 5 marks are awarded 5p
for every correct answer two
marks are deducted for every
incorrect answer. Teena answered
37 questions correctly but scored
only 127 marks. how many
questions did she answer
incorrectly?*​

Answer 1

Answer:

Marks given for one correct answer = 5

So, marks given for 10 correct answers  

= 5 X 10 = 50

Radhika's score = 30

Marks obtained for incorrect answer

= 30- 50 = -20

Marks given for one incorrect answer  

= (-2)

Therefore, number of incorrect answers

= (−20)÷(−2)=10