a class with 30 students had an average score of 80 on a test. A class with 20 students had an average score of 90 on the same t

Question

1 year ago

6

est. What is the average score of all the students in both classes

1 answer:

snow_tiger [21] · Answer 1 · 2024-04-24T04:08:09+03:00

The average score of all the students in both classes is 84.

<h3>How to calculate the average?</h3>

The class with 30 students had an average score of 80 on a test. The total score will be:

= 30 × 80

= 2400

A class with 20 students had an average score of 90 on the same test. The total score will be:

= 20 × 90

= 1800

Total scores = 2400 + 1800 = 4200

Number of students = 20 + 30 = 50

The average score will be:

= Total score / Total students

= 4200 / 50

= 84

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