Question

The ages of Hari and Harry are in the ratio of 5:7. Four years from now the ratio of
their ages will be 3:4.Find their present ages.

Answer 1

Answer:

20 years and 28 years

Step-by-step explanation:

The ratio of Hari's and Harry's present ages is 5:7  

So, let their ages be 5x and 7x

After 4 years their ages will be in ratio 3:4

Therefore,

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

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

20x+16=21x+12

16−12=21x−20x

4=1x

x=4

Therefore, present age of Hari = 5x=(5×4)=20 years.

Present age of Harry =7x=(7×4)=28 years

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