Question

A man is thrice as old as his daughter 5 year ago the man was for time old as his daughter find there present age

Answer 1

Answer:

45 & 15

Step-by-step explanation:

Man- m

Dughter- d

m=3d

m-5=4(d-5) => m=4d-15

3d=4d-15

d=15

m=3*15=45

Answer 2

Answer:-

→ To Find:-

 ⇒ Find there present age?

→ Solution:-

⇒ Let the present ages of the man and his son be "x" & "y".

⇒ As in the Given Question-

⇒ x = 3y    (1)

⇒ Age of father five years ago ⇒

⇒ x - 5

⇒ Age of son five years ago   ⇒

⇒ y - 5

⇒ Now, x - 5 = 4 ( y - 5 )

⇒          x - 5 = 4y - 20

⇒ From equation ( 1 )

⇒ 3y - 5 = 4y - 20

⇒ 4y - 3y = 5 + 20

⇒ y = 15

⇒ x = 3y

⇒ x = 3  × 15 = 45

⇒ ∴ Present ages of father and son ⇒

⇒ Age of Father = x = 45 years

⇒ Age of Son = y = 15 years