Question

The mean of 10 numbers is 20. If 5 is subtract from every number , what will be the new mean?

Answer 1

Answer:

Mean of 10 numbers is 20 so total is 200. subtracting 5 from each number means subtracting 50 from the total. so the new total is 150. Divide by the number of numbers and you get 15. so new mean is 15

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Answer 2

Answer:

15

Step-by-step explanation:

Let the total number be x

so x\10=20

x=200

5is subtracted from 10 no.so total 50

200-50/10new mean

150/10 =new mean

x=15