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Title: Can You Guess My Age? Post by: Ryan Martis on January 18, 2010, 07:10:15 AM 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...?" (http://800014.xyz/files/funfani/imgs/informative/guess_my_age_01.jpg) . . . . . . . . SCROLL DOWN FOR ANSWER. Title: Re: Can You Guess My Age? Post by: Ryan Martis on January 18, 2010, 07:11:13 AM ANSWER :
72 Years... Solution: Grandpa: "This problem is conveniently solved by writing down the necessary equations. Note that there are 12 months in a year, 52 weeks in a year, and 365 days in a year. Let m be my age in years. If s is my son's age in years, then my son is 52s weeks old. If g is my grandson's age in years, then my grandson is 365g days old. Thus, 365g = 52s. Since my grandson is 12g months old, 12g = m. Since my grandson, my son and I together are 120 years, g + s + m = 120. The above system of 3 equations in 3 unknowns (g, s and m) can be solved as follows. m / 12 + 365 m / (52 × 12) + m = 120 or 52 m + 365 m + 624 m = 624 × 120 or m = 624 × 120 / 1041 = 72. So, I am 72 years old." Title: Re: Can You Guess My Age? Post by: thomasray on November 25, 2010, 06:36:49 AM wooooHH man . . . that was too hard to guess . . . !!!
you really are 72 . . . ? |