Question

A. sabu's age is 7 time his son's age. Take son's age as x and write sabu's age
B. write their age after 8 year in term of x
C. After 8 year sabu's age is 3 time his son's age. write this relation using an equation?
step by step answers please ​

Answer 1

Concept

A variable is anything which possess some value. Variable helps in forming an expression or equation.

Given

Sabu's age is 7 times his son's age.

To find

Sabu's age, their age after 8 years in term of x, write the relation if sabu's age is 8 times the age of his son.

Explanation

The age of Sabu's son is x.

A)Sabu's age is 7 times his son's age so the age of  Sabu is 7x.

B) After 8 years the age of Sabu is 7x+8

After 8 years the age of Sabu's son is x+8

C) If after 8 years the age of Sabu is 3 time his son's age then:

7x+8=3(x+8)

7x+8=3x+24

7x-3x=24-8

4x=16

x=4

The relation will be 7x+8=3(x+8) after solving we get the age of son at present is 4.

#SPJ3

Answer 2

Step-by-step explanation:

A. Son's age = x years

    Sabu's age = 7 times his son's age = 7x

B.

After 8 years, Son's age = (x + 8) years

Sabu's age = (7x + 8) years

C.

Now, after 8 years, Sabu's age is 3 times his son's age

Son's age after 8 years = (x + 8) years

∴ Sabu's age after 8 years = 3(x+8) years = (3x + 24) years

And also from B, we have

Sabu's age after 8 years = (7x + 8) years

3x + 24 = 7x + 8

7x - 3x = 24 - 8

4x = 16

x = 16/4

x = 4 years

Hence, Son's present age = 4 years

Sabu's present age = 7 x 4 = 28 years.

#SPJ3