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 and get 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?

Step-by-step explanation:

number of correct answer is x and

number of wrong answer is y

according to question

In the case of Radhika

5x-2y=30

x=10

y=10

In the case of Jay

5x-2y=-12

x=4

y=16

incorrect answer by Radhika is 10 and by jay is 16

yo

step-by-step explanation:

yo

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