Question

The mean mass of 5 boys is 62 kg. When the mass of a boy is excluded,the mean mass of the remaining 4 boys becomes 64 kg . Find the mass of the boy that has 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

QUESTION -

The mean mass of 5 boys is 62 kg. When the mass of a boy is excluded,the mean mass of the remaining 4 boys becomes 64 kg . Find the mass of the boy that has been excluded

ANSWER -

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