After MM students took a test, there was a total of 64% of correct answers. If the test contains 50 questions, what is the least number of questions that the next student have to get right to bring the total of correct answers to 70% ?

3 Questions

Step-by-step explanation:

After MM students took a test, there was a total of 64% of correct answers.

The tests contained a total of 50 questions.

Number of questions gotten to score 64%= 64% X 50 = 32 questions

If the next student wants to score 70%, he has to score

70% of the total score = 70% X 50 = 35

Therefore the least number of question more the student has to get right

=35-32

= 3 questions

4x and 6y

im not sure though