Question

In a test (+5) marks are given for every correct answer and (–2) marks are given for
every incorrect answer. (i) Radhika answered all the questions and scored 30 marks
though she got 10 correct answers. (ii) Jay also answered all the questions and scored
(–12) marks though he got 4 correct answers. How many incorrect answers had they
attempted?

Answer 1

Answer:

here is your answer mate...

Step-by-step explanation:

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

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