Question 541001: a teacher is four times as old as a student. in 30 years, the students age will be half of the teachers age. How old are they now? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! a teacher is four times as old as a student. in 30 years, the students age will be half of the teachers age. How old are they now
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let x=student's current age
4x=teacher's current age
30 years hence
student's age=x+30
teacher's age=4x+30
(x+30)/(4x+30)=1/2
2x+60=4x+30
2x=30
x=15
ans:
student's current age=15
teacher's current age=60
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