Question

. John is 7 years older than half of his sisters age. If John is 35 years old, how old is his sister ?

Answer 1

Hii ☺ !


Let present age of his sister be X years.


Age of John = x/2 + 7 = ( x + 14/2 ) years.



A/c,


Age of John = 35


x + 14/2 = 35


x + 14 = 35 × 2

x+ 14 = 70


x = 70 - 14


x = 56 year's.


Present age of his sister= x = 50 year's.

Answer 2

$\underline{solution}$

let persent age of John sister is x year.

another hand,

given

the age of John is 7 year's older than half of his sister's age . and John age is 35 years it's meant.

=
$= \frac{ x}{2} + 7 \\ \\ = \frac{x \: + \: 14}{2} \: years \\ \\ accoring \: to \: question \: \\ \frac{x \: + \: 14}{2} \: years \: = 35$

X + 14 = 35 × 2

X + 14 = 70

X = 70 - 14

X = 56 year.

since , the persent age of John sister 56 year.


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