SOLUTION: Jeremy is 15 years old.His father is 4 times as old as him now. In how many years time will their total age be 115 years?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Jeremy is 15 years old.His father is 4 times as old as him now. In how many years time will their total age be 115 years?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1109554: Jeremy is 15 years old.His father is 4 times as old as him now. In how many years time will their total age be 115 years?
Found 2 solutions by solver91311, josgarithmetic:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


If the son is 15, then the father, who is 4 times as old, must be 60 years old. Then the current sum of their ages is 15 + 60 = 75. You must add 40 to 75 to get to 115. Since 2 is added to the sum of their ages every year, it will take 20 years to increase the sum of their ages by 40.

John

My calculator said it, I believe it, that settles it

Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
15, and 4%2A15=60 now.

x, in how many years that total is 115?
%2815%2Bx%29%2B%2860%2Bx%29=115
Solve for x.