Math, asked by talibali8259, 1 month ago

In a competition 4 marks are given for every correct answer, (-2) for every incorrect answer. Rahul scored 20 marks. If he got 9 correct answers, find the number of questions he answered incorrectly

Answers

Answered by disharoy20031

0

Answer:

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Answered by kumbharearpit9

1

Step-by-step explanation:

4x -2y = 20

4×9 - 2y =20

36 - 20 = 2y

16 = 2y

y = 8

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