Question

The mean of 25 numbers is 18. If 12 is added tp every number what will be the new mean

Answer 1

Answer:

20

Step-by-step explanation:

Mean of 25 numbers,

Sum of 25 numbers be x

Mean = x/25 = 18

x = 450

2 added to each number (25 times),

Mean = [x + (25*2)] / 25 = (450 + 50) / 25 = 500/25 = 20