Question

Present ages of Anju and Vikky are in the ratio 3:4. After 5 years from now, the ratio of their ages will be 4 : 5. Find their present ages. Q​

Answer 1

Answer:

Given:-

Present ages of Anju and Vikky are in the ratio 3:4. After 5 years from now, the ratio of their ages will be 4 : 5.

To find :-

Their present ages.

Solution:-

Anju and Vikky's ratio present ages be 3x and 4x

5 years from now, the ratio of their ages will be 4 : 5.

So,

(3x+5) and (4x+5)

So their ratio=(3x+5) :(4x+5)

we can write this in fraction form

$= \frac{3x + 5}{4x + 5} = \frac{4}{5}$

On cross multiplying we get,

$5(3x + 5) = 4(4x + 5)$

$= 15x + 25 = 16x + 5$

$15x - 16x = + 5 - 25$

$= - 1x = - 20$

$x = \frac{ - 20}{ - 1}$

On cancelling we get,

$x = 20$

After finding we need to find present ages,

4x=4×20=80

5x=5×20=100

Anju age=80 years

Vikky age=100 years

So their present ages are 80 years and 100 years

Step-by-step explanation:

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Answer 2

here's explanation in the attachment