Question

solve this word problem with correct answer.
In year2015.Mrs.joshi got a job with salary , RS. 1,80,000 per year . Her employer agreed to give Rs. 10,000 per year as Increment.Then In how many years will her annual salary be Rs. 2,50,000 ?
Who tell me answer i am marked her answer as brainlist answer​

Answer 1

Answer:

by ap series a=180000

D=10000

an=250000

an =a+(n-1)D

250000=180000+(n-1)10000

250000-180000=(n-1)10000

70000/10000=n-1

7+1=n=8

after 8 years her salary became 250000