Question

ther are 20 numbers. each number is subtrarcted from 15 and give the mean of the number thus obtained is found to be-3.5. what was the original mean of given numbers?​

Answer 1

Answer:

I will give you answer later

Answer 2

Answer

15‐x²___ 15‐x 20

15‐x/15‐x²+15‐x³

20–15–3–5=3

3Ans