Question

Six years ago kirti age was 1/4 of her present age . What will be her present age after 7 years ?

Answer 1

Given:

6 years ago Kirti's age was $\frac{1}{4}th$ of her present age

To find:

Kirti's present age after 7 years

Solution:

Lets assume "x" years as Kirti's present age.

So,

Age 6 years ago will be "x - 6" years

According to the question, we can write the equation as

$x - 6 = \frac{1}{4} x$

⇒ $4(x - 6) = x$

⇒ $4x - 24 = x$

⇒ $4x - x = 24$

⇒ $3x = 24$

⇒ $x = \frac{24}{3}$

⇒ $x =$ 8 years ← present age of Kirti

Now,

Age after 7 years will be "x + 7" years

∴ Kirti's present age after 7 years = 8 + 7 = 15 years

Thus, Kirti present age will be 15 years after 7 years.

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