Question

The present ages of vikas and vishal are in the ratio 15:8.  after ten years , their ages will be in the ratio 5:3. Find their present age of vishal.

Answer 1

Answer:

Vikas present age=60

Vishal present age=32

Step-by-step explanation:

Given,

Vikas : Vishal=15:8

The ratio of Vilas:Vishal after 10 yrs=5:3

☝️This can also be written as:

15x+10=5

8x+10=. 3

Now,we will find x by cross multiplication method.

5(8x+10)=3(15x+10)

40x+50=45x+30

50-30=45x-40x

20=5x

20/5=x

4=x

Vikas :Vishal age after 10 years=15x+10:8x+10

Vikas age after 10 years=15x

=(15×4)

=60

Vishal age after 10 years=8x

=(8×4)

=32

Hope this answer helps you☺️☺️

Answer 2

Answer:

Present age of Vikas = 60 years

Present age of Vishal = 32 years

Step-by-step explanation:

Let the age of Vikas and Vishal be 15x and 8x respectively

Given:

10 years from now, their ages will be in the ratio 5:3

So,

15x+10/8x+10 = 5/3

Now, we will use cross multiplication method to find x

3*(15x+10) = 5*(8x+10)

45x+30 = 40x+50

45x-40x = 50-30(by using transpose method)

5x = 20

x = 20/5(Cross multiplication method)

x = 4

Now,

Present age of Vikas = 15x = 15*4 = 60 years

Present age of Vishal = 8x = 8*4 = 32 years

Hope It Helps...