Question

The mean weight of 8 numbers is 15 kg. If 2 mul-
tiply each number, what will be the new mean?​

Answer 1

Mean weight is 8 member is 15

let x/8= 15

x= 120

if each no. multied by 2 then total weight will be 2x = 240

so new mean 2x/8= 2*15 = 30