Problema Solution
A man earned $2500 the first year he worked. If he received a raise of $400 at the end of each year, what was his salary during the 15th year?
Answer provided by our tutors
2500+2900+3300+........15 times.
It is in Arithmatic progression.
n th term =a+(n-1)*d
n=15.
a=2500
d=400.
15 th term =2500+(15-1)*400
=8900.
15 th year salary =$8900.