Question

the mean of 5 boys is 62 .when the mass of a boy is excluded the mean of mass of the remaining becomes 64 kg . find the mass of the boy been excluded?

Answer 1

Answer:

54

Step-by-step explanation:

let five boy's weight x

so x/5=62

x=310

and four boys weight y

so y/4=64

y=256

let the boy weight which is removed from them is z

so x-z=y

x-y=z

310-256=z

z=54

weight of boy removed is 54

Answer 2

Answer:

Step-by-step explanation:

Total xi = 62×5= 310

Total xi = 4×64= 256

Then mass of boy excluded = 310-256 = 54