Question

The ratio of the age of a father to that of his son is 5:2. if the product of their ages in ur is 1000, then the find the father age after 10 yr

Answer 1

Answer:

Let the age of father and son be 5x:2x

Step-by-step explanation:

5X × 2X =1000

10X^2 =100

X^2=100

X=10

Therefore, the age of father

= 5 × 10 = 50 yrs

After 10 yrs, his age will be

50 + 10

= 60 yrs

Answer 2

Answer:

$60yrs$

Step-by-step explanation:

From, the question,

we know that the ratio of father and son age is $5 : 2$.

Let the age of father and son be $5x : 2x$

The product of their ages is 1000.

Then,

$5x X 2x =1000\\\\10x^2 =100\\\\x^2=100\\\\x=10$

Therefore, the present age of the father $= 5 X 10 = 50 yrs$

After 10 yrs, The father's age will be $50 + 10 = 60 yrs$

Hence, the father's age after 10 yr  will be $60yrs.$