Can anyone redo the solution?

[user4724]

What is the number of terms (99 or 100), because in the solution it accounts for 100.
In both cases Quantity B is greater, but just confused with the no. of terms.

[Leaderboard]

How to Ask Better GRE Questions on Forums

Welcome to the forums! Since GregMat (who is a very chill person) doesn’t have any specific formatting rules when it comes to asking questions on the forums, I feel like there should at least be a reference text of some sort that can help people ask better questions and make the process more enjoyable for those who try to answer them. The Golden Rule: Imagine You’re Trying To Answer the Question Before you post your question about GRE preparation, practice questions, or strategies, try to put y…

[cylverixxx]

@user4724

What is the number of terms (99 or 100), because in the solution it accounts for 100.

What do you mean? Your main task is to realize that this is a telescoping product

[user4724]

Please see my solution.

[Leaderboard]

Indeed, this has been fixed.