Question

9 years hence a girl will be three times as old as she was 9 year ago how old she is now

Answer 1

she is now old around 27 years

Answer 2

Answer:

$\huge\sf\underline{\underline{\pink{ Answer:-}}}$

The girl's present age is 18 years.

$\Large{\underline{\underline{\bf{QuEsTiOn:-}}}}$

9 years hence, a girl will be 3 times as old as she was 9 years ago. How old is she now?

$\sf\underline{\underline{\green{TO \: FIND \: }}}$

The girl's present age?

$\huge\underline\mathbb{\red S\pink {0} \purple {L} \blue {UT} \orange {1}\green {ON :}}$

Let the girl's present age be x years

Girl's age 9 years ago = x - 9 years

Girl's age 9 years hence = x + 9 years

$\sf\underline{\underline{\green{ACCORDING \: TO \: THE \: QUESTION, \: }}}$

$= > x + 9 = 3 \: ( x - 9)$

$= > x + 9 = 3x - 27$

$= > 3x - x = 9 + 27$

$= > 3x - x = 36$

$= > 2x = 36$

$= > x = \frac{36}{2}$

$= > x = 18$

$\sf\underline{\underline{\green{HENCE, \: }}}$

The girl's present age is 18 years.