Question

two years ago the retio of the ages of Swati and Khyati was 5:7 respectively. Two years hence the retio of their ages will be 7:9 respectively. what is the present age of Khyati ?​

Answer 1

Answer:

let the present age of swati be x

let the present age of khyati be y

before 2 years the ratio of their ages was

x-2:y-2.........i

that is ,

5:7

after 2 years the ratio of their ages will be

x+2:y+2.......,ii

that is ,

7:9

x-2/y-2=5/7

x-2=5

x=5-2

x=3

y-2=7

y=7-2

y=5

as we know that the age of khyati was y

y=5

so her age is 5yrs

Step-by-step explanation:

think itis correct