Question 1106519
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<U>Mental solution</U>


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    In 5 years the sum of their ages will be 50 + 2*5 = 60.


    So, in 5 years the sum of their ages will be 60 and the age of one will be 4 times the age of the other.


    Now everybody can easily calculate their ages in 5 years in the mind: in 5 years they will be 12 and 48.


    Hence, now Andy is 48-5 = 43 and Andy is 12-5 = 7 years old.
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