Nicholas asks his teacher “How old are you?” His teacher tells him, “When I was your age you were only 4 years old. When you are my age, I will be 40.” What is the age of the teacher? Thanks for help.

Guest Jul 10, 2022

#1**0 **

Let teacher's current age ==T

Let the number of years ago==Y

Let Nicholas's current age==N

T - Y ==N...............(1)

T + Y==40..............(2)

N - Y==4.................(3), solve for N, T, Y

**T==28 years - teacher's current age N==16 years - Nicholas's current age Y==12 years - years ago when Nicholas was 4**

Guest Jul 11, 2022