Question

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

Answer 1

g= grandson's age
s= son's age
m = grandfather's age

"My grandson is as many days as my son in weeks"
s=7g

"My grandson is as many months as I am in years"
m+12g

We know that:
g + s + m = 120
So we can substitute s and m:
g + 7g + 12g = 120
20g = 120

g= 6yrs as of the grandson's age

Now do:
s = 7(6) = 42 yrs as of son's age
m = 12(6) = 72yrs as of my age (grandpa's age)

Answer 2

You are 120*12 / (1 + 7 + 12) yrs old = 72 yrs old

grand son 72 months = 6 years

son 7*6yrs = 42 yrs old.

7 days in the week, and 12 months in the year

Sound about right?

Answer 3

@calculusxy Thank you! @BasicallyAwesome Thank you, as well.

Answer 4

You're welcome :)

Answer 5

Anytime :)

Answer 6

dot.