Question

Lakshmi father is 49 years old he is 4 years older than 3 times Lakshmi age what is Lakshmi's age

Answer 1

Let 'x' be present age of Laxmi and of her father be 'y'.

Given:
y=49 years. (1)

According to condition,
y=3x+4
3x=49-4. (from 1)
3x=45
x=45÷3
x=15

So present age of Laxmi is 15 years


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Answer 2

$3x + 4 = 49 \\ 3 = 45 \\ x = 15 \\ \: age \:of \: lakshmi \: is \: 15years$