What will be Reena's score in a class test containing 10 questions if 5 marks are awarded for every correct answer, (-2) marks are deducted for every incorrect answer, and 0 marks are given for each question not attempted, provided that she gets 5 correct and 5 incorrect answers?

To calculate Reena's score in the class test, we can use the given information:

She gets 5 marks for every correct answer.

She loses 2 marks for every incorrect answer.

She receives 0 marks for each question not attempted.

Now, let's calculate her score based on the information provided:

Step 1: 

For the 5 correct answers, she earns: 

5 correct answers $\times$ 5 marks per correct answer = 25 marks

Step 2: 

For the 5 incorrect answers, she loses: 

5 incorrect answers $\times$ 2 marks lost per incorrect answer = -10 marks

Step 3: 

Now, we can calculate her total score by adding up the marks earned and lost:

Total score = Marks earned - Marks lost

Total score = 25 marks - 10 marks = 15 marks

So, Reena's score in the class test is 15 marks.