Question

The age of Hari and Harry are in the ratio 5 : 7 . Four years from now the ratio of their ages

will be 3 : 4. Find their present age ?​

Answer 1

Answer:

hari-20yrs,harry-28 yrs

Step-by-step explanation:

let haris age be 5x and Harry 's age be 7x

According to question

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

after cross-multiplication

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

20x+16=21x+12

20x-21x=12-16

-x=-4

x=4

present age of hari is 5x=5×4=20 yrs

and that of harry=7x=7×4=28 yrs

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Answer 2

Answer:

hari be 5x then harry be 7x 4 years later it will be 5x+4 and 7x+4 respectively. a/q 5x+4/7x+4=3/4

20x+16=21x+12=> x=4

thus hari is 20 and harry is 28

verification: 20+4/28+4=24/32=3/4

Step-by-step explanation:

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