SOLUTION: Age_Word_Problem At present ,Mary is four years younger than her brother Tom .If Tom is n years old ; What will be the sum of their ages in 3 years time ?

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Question 1074879: Age_Word_Problem
At present ,Mary is four years younger than her brother Tom .If Tom is n years old ;
What will be the sum of their ages in 3 years time ?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Tom : T=n
Mary: M=n-4
In 3 years,
T=n%2B3
M=n-4%2B3=n-1
So the sum is,
T%2BM=n%2B3%2Bn-1
T%2BM=2n%2B2