Question

10 years before ratio of age of father and son is 3:1 and after 10 years ratio will becomes 5:3 find the sum of age after 5 year

Answer 1

Answer:

70

Step-by-step explanation:

10 years before father/son=3/1

say father's age was 3x and sons age was x

After 10 years, father's age will be 3x+20

Son's age will be x+20

Given, (3x+20)/(x+20)=5/3

=>9x+60=5x+100

=>4x=40

x=10

10 years back father's age was 30, son's age was 10

Present age of father is 30+10=40 years

present age of son=10+10=20years

after 5 years, the sum will be=45+25=70