Lizzy: Adam teaches 50 students a year. How many students will Adam teach in 10 years if in the first year he only teaches 40 students?.
Me: Hmmm, let me think. I think this is the detailed solution:
User
Adam will teach 50 * 9 = 450 students in 9 years. So, in 10 year Adam will teach 450 + 40 = 490 students. Final answer: 490.
Assistant