Question

The ages of hari and harry are in
ratio of 5:7:4 years from now ratio
of their ages wil be 3:4 find the present
age​

Answer 1

Answer:

x=4

Step-by-step explanation:

let the ages of hari and harry be 5x and 7x

4 years from now,

hari age=5x+4

harry age=7x+4

5x+4 / 7x+4=3/4

4 x (5x+4) = 3 x (7x+4)

20x+16=21x+12

16-12=21x-20x

4=x

x=4

hari age = 20

harry age= 28

hope it helps

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Answer 2

hari : harry

5 :7

hari's age = 5x

harry's age = 7x

four years from now,

5x +4 / 7x +4 = 3/4

4(5x+4)=3(7x+4)

20x +16= 21x +12

20x - 21x = 12 - 16

-x= -4 (minus sign cancelled)

x = 4

Therefore ,

Hari's age = 5(4) = 20 years

Harry's age = 7(4) = 28 years

hope it helps ....