fat barbie

But in high-level problems, sometimes the answer is approximate, but not for olympiad.

Lets assume the sum is 210, a = 5, d = 3, and solve:

But perhaps the problem meant the sum is 185 for n=10?

The sum of the first n terms of an arithmetic sequence is 340. First term is 5, common difference 3. Find n.

The sum of the first n terms of an arithmetic sequence with first term 4 and common difference 3 is 100. Find n.

Download Oracle JDK Today—Get the Ultimate Java Development Kit Instantly!

Unlock Java Fame: Free Oracle JDK Download Now & Boost Your Projects!

Simplify Your Dev Workflow—Heres How to Download Oracle JDK Fast!

Oracle JDK Download Guide: Get Full Control Over Your

Download Oracle JDK 8 Now—Free Instant Access to Java 8 Development Tools!

Related Articles