Question

average score of section ABC in a class is 76 57 and 69 and the number of students are 57 133 and 76 find the average of whole sections together
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Answer 1

Answer:

64.424

Step-by-step explanation:

Score = No. of students X Average

Now, For section A,

Score = 76 x 57 = 4332

Now, For section B,

Score = 57 x 133 = 7581

Now, For section C,

Score = 69 x 76 = 5224

$Average = \frac{Total Score}{Total no. of students}$

So Average = ( 4332 + 7581 + 5224 )/ 266

= 64.42