Question

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Answer 1

Hola there,

Lets take the age(in years) of,

 

Grand Father = GF

Father = F

Son = S 

According to the question,

GF + F + S = 140 yrs       ....equation 1

Grand Son’s age in month = Grand Father’s age in years

=> 12S = GF                   .....equation 2

Grand Son’s age in days = Father’s age in weeks

=> S × 365 = F × (365/7)

=> S = F/7 

=> F = 7S                 ....equation 3 

Now we have three equations, after solving these equations we can easily get the answer..

After putting the value of equation 2 and equation 3 in equation 1, we get the following results..

=> 12S + 7S + S = 140

=> 20S= 140 

=> S = 7

Now, put the value of S in equation 2, we get..

GF = 12S = 84

Next put the value of S in equation 3, we get..

F = 7S = 49

So, we get the ages of all there people as follows..

Son’s age = 7 Years

Father Age = 49 Years 

Grand Father’s Age = 84 Years.

Hope this helps...:)