Question

i couldn't understand this​

Answer 1

Hᴇýᴀ Mᴀᴛę ( ◕‿◕ )

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★  Let the age of mine, my father and my grandfather be 25, 50, and 75 years respectively. 

(a) Now, Age of mine = 25 years. 

Age of my grandfather = 75 years.

∴ Grandfather's age = 3 × My age

If my age is x (= 25) years and then my grandfather's age will be 3x years.

∴ Required linear equation is

 Grandfather's age = 3x 

(b) Mine age = 25 years. 

My Father's age = 50 years.

It means my father is twice of mine age,

∴ Father's age = 2 × My age

 Father's age = 2x

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Answer 2

Answer:

let the age of mine, father,grandfather be 25,50,75 respectively.

(a) Age of mine=25 years

Age of grandfather=75 years

Grand father age=3×my age

let x be 25

so ,Grand father age is 3x

》Requried linear equation is

grand father's age=3x

(b)my age =25years

Father's age=50years

Father age=2×my age

my age is x=25

so,Father's age is 2x