Question 1107057
Mr.  Bean lived a quarter of his life as a child,  a fifth as a teenager,  and a third as an adult.  He then spent 13 years in his old age.  How old was he when he died? 
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1/4 + 1/5 + 1/3  = (15 + 12 + 20)/60 = 47/60 of his life
1 - 47/60 = 13/60 = 13
He died at age 60