the average of 20 valus is 18 if 3 is subtracted from eavh of the valus then the new average will be
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Answer:
In this question,
Average of 20 values = A = 18
Sum of all the 20 values= S = average * 20
=A*20
=18*20
=360
If 3 is substracted from each of the 20 values, then total value substracted = 3*20=60
Now new Total Sum = S1=S - 60
=360–60
=300
New Average = (New Sum) / 20
=300/20=15
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Explanation:
the new average will be 15
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