Question

after 15 years mayank's age will become 4 times that of his present age .find his present age

Answer 1

Let Mayank's present age be x years

After 15 years, age of Mayank = x + 15

After 15 years, Mayank's age will be 4 times his present age = 4x


According to the question,

x + 15 = 4x

➾ 15 = 4x - x

➾ 15 = 3x

➾ 5 = x


∴ Present age of Mayank ➾ x years

➾ $\green{\boxed{\green{\boxed{\red{\textsf{5\:years}}}}}}$

Answer 2

$\huge\mathfrak\red{Answer :}$


Let age of Mayank's age = x

Now...

After 15 years... his age will be x + 15 (as given in question)

Now the question is... after 15 years Mayank's age means x + 15 will become 4 times means 4x...

x + 15 = 4x

15 = 4x - x

15 = 3x

3x = 15

x = $\dfrac{15}{3}$

$\textbf{x = 5 years}$

As x = Mayank's age...

$\textbf{So, Mayank's present age is 5 years.}$

________________________________