Question

The average of 20 values is 18 if 3 is subtracted from each of the values then the new average will be
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Answer 1

this is the answer of this question

Answer 2

Answer:

15

Step-by-step explanation:

In this question,

Average of 20 values = 18

Sum of all the 20 values = average * 20

=18*20

=360

If 3 is subtracted from each of the 20 values, then total value subtracted = 3*20 = 60

Now,

new Total Sum = 60

=360 – 60

=300

New Average = (New Sum) / 20

=300/20=15