Ask Question
2 February, 06:55

25 students average 84 on a test. another group of 20 students averages 66. find the overall average.

+3
Answers (1)
  1. 2 February, 08:09
    0
    84*25=sum of all 25 students marks

    66*20=sum of 20 students marks

    total average = (84*25+66*20) / 25+20

    = (2100+1320) / 45

    = 3420/45

    =76
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “25 students average 84 on a test. another group of 20 students averages 66. find the overall average. ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers