Quicker Maths
11Sep/092

Grandpa’s Age

Grandpa:

"My grandson is about as many days as my son is 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?"

Leave your answers below:

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  1. Absolutely correct
    Ratio of Grandpa:son:grandson = 12:7:1 in yrs
    Total age = 120
    so grandpa = (12/20 ) 120 = 72 yrs

  2. Answer is 72 years.
    Son’s age 42 yrs
    and grand son’s age 6 yrs


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