Math, asked by kriyaroy921, 1 month ago

The frequencies of the scores 30,50,60 and 40 are respectively equal to x, x+2, x-8. and x+6. If the mean of these scores is 40, What is the frequency of the score 40 ?​

Answers

Answered by sex4633
0

Answer:

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Answered by arunadevitorlikonda1
0

Answer:

x+,x+2,x-8=40

2x+2,x-8=40

2x+2+x=40-8=42

3x+2=42

3x=42-2=40

3x=40

x=20

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