**An infinite geometric series has a sum of 100 and a common ratio of 4/5. what is the first term of the series?**

**Answer:**

Here we got special case of geometric series with |r| = 4/5 <1

The infinite sum for such common ratio has the following value:

**An infinite geometric series has a sum of 100 and a common ratio of 4/5. what is the first term of the series?**

**Answer:**

Here we got special case of geometric series with |r| = 4/5 <1

The infinite sum for such common ratio has the following value: