Question

The present of Sita's father is three times the present age of Sita. After six years sum of their ages will be 69 years. Find their present ages. 

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Answer 1

$present \: age \: of \: sita = x$

$then \: present \: age \: of \: her \: father = 3x$

$and$

$(x + 6) + (3x + 6) = 69$

$= > \: 4x + 12 = 69$

$= > \: 4x = 57$

$= > \: x = \frac{57}{4} = 14 \frac{1}{2} \: years$

$x = 14 \: years \: and \: 3 \: months \\ = sita \: present \: age$

$present \: age \: of \: her \: father = 3x$

$= 3 \times \frac{14}{9}$

$= \: 42 \: years \: and \: 9 \: months$

Answer 2

Present age of sita =x

Present age of sita =xthen present age of her father =3x

Present age of sita =xthen present age of her father =3xand

Present age of sita =xthen present age of her father =3xand(x+6)+(3x+6)=69

Present age of sita =xthen present age of her father =3xand(x+6)+(3x+6)=69⇒4x+12=69

Present age of sita =xthen present age of her father =3xand(x+6)+(3x+6)=69⇒4x+12=69⇒4x=57

Present age of sita =xthen present age of her father =3xand(x+6)+(3x+6)=69⇒4x+12=69⇒4x=57⇒x= 457 =14 41

=14 41

=14 41 years.

=14 41 years.=14

=14 41 years.=14 12

=14 41 years.=14 123

=14 41 years.=14 123

=14 41 years.=14 123 years.

=14 41 years.=14 123 years.x=14 years and 3 months

=14 41 years.=14 123 years.x=14 years and 3 months = sita's present age.

=14 41 years.=14 123 years.x=14 years and 3 months = sita's present age.∴ present age of her father =3x

=14 41 years.=14 123 years.x=14 years and 3 months = sita's present age.∴ present age of her father =3x=42 years and 9 months.