Use reasoning to answer the following question.
There are 322 voters in District 1. District 2 has 19 less voters than District 3. District 3 has twice as many voters as District 1. How many total voters are in Districts 1 - 3?

1591
D1 = 322.

D3 = 2 * 322 = 644.

D2 = 644 - 19 = 625.

322 + 625 + 644 = 1591.

There are 1591 voters in Districts 1 - 3.

.

The answer: 1591