Question

There are 30 questions on a math test.
5 points are awarded for each correct answer, and 2 points are deducted for each incorrect answer.
Tom scored 122 points on the test.

How many incorrect answers did Tom give?
pls give correct answer with steps

Answer 1

Given : The Total Number of Questions in the Quiz = 30

★ The Number of Incorrect Answers given by Angela will be : 30 - C

Given : 5 Marks are awarded for each Correct Answer

★ The Marks Angela gets for her 'C' Correct Answers will be :

Given : 2 Marks are deducted for each Incorrect Answer

★ Marks which get deducted for (30 - C) Incorrect Answers will be :

Given : Total Marks scored by Angela = 122

★ The Difference of Marks scored for Correct Answers and Marks deducted for Incorrect Answers should be equal to 122

★ Number of Correct Answers given by Angela = 26

★ Number of Incorrect Answers given by Angela = (30 - 26) = 4

Answer 2

Answer:

4 wrong answers

Step-by-step explanation:

total=30 questions

Tom's score=122 marks

Assume all of his answers are correct:

30x5-150 marks

150-122marks=28marks

Given: 5 marks are awarded for each correct answer n 2 marks r deducted for each incorrect answer

So, 5+2=7marks

Therefore, 28÷7=4 wrong answers