Question

John father age is four times of John age after 5 years the age of John's father is 3 times of John's age .Find the age of John and his father​

Answer 1

Answer:

Their current ages are:

• John's age = 10 years
• His father's age = 40 years

Step-by-step explanation:

Given that:

• John's father age is four times of John's age.
• After 5 years the age of John's father is 3 times of John's age.

To Find:

• The age of John and his father.

Let us assume:

• The current age John be x.
• John's father age = 4x

After 5 years:

• John's age = (x + 5)
• John's father age = (4x + 5)

Finding their current ages:

According to the question.

⟶ (4x + 5) = 3(x + 5)

⟶ 4x + 5 = 3x + 15

⟶ 4x - 3x = 15 - 5

⟶ x = 10

Their current ages are:

• John's age = x = 10 years
• His father's age = 4x = (4 × 10) = 40 years

Answer 2

Answer:

$\large\underline {\sf \pmb{ \red{Given}}}$

• ➠ John father age is four times of John
• ➠ After 5 years the age of John's father is 3 times of John's age .

$\large \underline {\sf \pmb{\red{To \: Find}}}$

• ➠ The age of John and his father

$\large \underline{\sf \pmb {\red{Solution}}}$

$\bigstar \: \underline \frak {\pmb{\pink{Let \: the}}}$

John age:

• ➛ Current age of John be x .
• ➛ After 5 years the age of John be (x+5)

John's Father age:

• ➛ Current age of Let the John's father be 4x
• ➛ After 5 years the age of John's father be (4x+5)

$\bigstar \: \underline \frak {\pmb{\pink{According \: to \: the \: Question }}}$

• Finding the current ages of John and John's Father.

$\implies \sf{ 4x + 5 = 3(x + 5)}$

$\implies \sf{ 4x + 5 = 3x + 15}$

$\implies \sf{ 4x - 3x = 15 - 5}$

$\implies\sf{x = 10}$

$\large \star \underline{\boxed{\bf \purple{x = 10}}}$

$\bigstar \: \underline \frak{ \pmb{\pink{Henceforth}}}$

John age:

• ➛ The current age of John = x = 10 years
• ➛ After 5 years the age of John = 10+5 = 15 years

John's Father age:

• ➛ The current age of John's Father = 4x = (4×10) = 40 years
• ➛ After 5 years the age of John's Father = 40+5 = 45 years