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zloy xaker [14]
3 years ago
12

A teacher is four time as old as a student .in 20 years, the student 's age will be half of the teacher 's age. How old are they

now?
Mathematics
1 answer:
notka56 [123]3 years ago
5 0
Let the present age of student be x
Present of teacher will be 4x

After 20 years,
Age of student = x + 20
Age of teacher = 4x + 20

According to the given condition after 20 years,
x + 20 = (4x + 20)/2
x + 20 = 2x + 10
2x - x = 20 - 10
x = 10

So student's present age is 10 years while teacher's is 4 x 10 i.e 40 years.

Hope This Helps You!
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