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 question and scored 30 marks and get 10 correct answer​

Answer 1

HEY BUDDY HERE IS UR 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

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