Question

29. Mrudhula gave birth to twins, when she was twenty
years old. After x years, the sum of the ages of
Mrudhula and her twin children is 50 years. What is
the value of x?​

Answer 1

Answer :-

Given :

• Mrudhula was 20 years old when she gave birth to twins.
• After 'x' years, the sum of ages of Mardhula and her twin children is 50 years.

To find :

• The number of years (x) after which the sum of ages of Mardhula and her twin children will be 50 years.

Solution :

Let the number of years be 'x'

The age of each of the children will be equal to the number of years which is 'x'

.°. The total age of twins after 'x' years => (x + x) = 2x

According to question,

=> 20 + 2x + x = 50

=> 20 + 3x = 50

=> 3x = 50 - 20

=> 3x = 30

=> x = 30/3

.°. x = 10

Hence, the number of years after which the sum of their ages will be 50 years is 10 years respectively.

Answer 2

Question:-

• Mrudhula gave birth to twins, when she was twenty years old. After x years, the sum of the ages of Mrudhula and her twin children is 50 years. What is the value of x?

To Find:-

• Find the value of x.

Solution:-

Given ,

• Let number of years be x

• The sum of the ages of Mrudhula and her twin children is 50 years

According to the Question:-

$\dashrightarrow\sf \: 20 + 2x + x = 50$

$\dashrightarrow\sf \: 3x + 20 = 50$

$\dashrightarrow\sf \: 3x = 50 - 20$

$\dashrightarrow\sf \: 3x = 30$

$\dashrightarrow\sf \: x = \cancel\dfrac { 30 } { 3 }$

$\dashrightarrow\sf \: x = 10$

Hence ,

• The value of x is 10.