Solve the following :
Laxmi’s father is 49 years old. He is 4 years older than three times Laxmi’s age . What is Laxmi’s age?

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Solution

Let the age of Laxmi be $x$ years.
Then, her father’s age = $(3 x + 4)$ years
According to question, $3 x + 4 = 49$
$\Rightarrow 3 y = 49 - 4 \Rightarrow 3 y = 45$
$\Rightarrow y = \frac{45}{3} \Rightarrow y = 15$
Thus, the age of Laxmi is 15 years.

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Solve the following : Laxmi’s father is 49 years old. He is 4 years older than three times Laxmi’s age . What is Laxmi’s age?

Let the age of Laxmi be x years. Then, her father’s age = (3x+4) years According to question, 3x+4=49 ⇒3y=49−4⇒3y=45 ⇒y=453⇒y=15 Thus, the age of Laxmi is 15 years.

Solve the following :
Laxmi’s father is 49 years old. He is 4 years older than three times Laxmi’s age . What is Laxmi’s age?

Let the age of Laxmi be $x$ years.
Then, her father’s age = $(3 x + 4)$ years
According to question, $3 x + 4 = 49$
$\Rightarrow 3 y = 49 - 4 \Rightarrow 3 y = 45$
$\Rightarrow y = \frac{45}{3} \Rightarrow y = 15$
Thus, the age of Laxmi is 15 years.