Sum of an Arithmetic Series

Evaluate the arithmetic series described:

2 + (-2) + (-6) + (-10)..., Find the sum of the first ten terms

• -160

• -328

• -320

• -336

Evaluate the arithmetic series described:

11 + 18 + 25 ..., Find the sum of the first seven terms

• 225

• 450

• 384

• 224

Evaluate the arithmetic series described:

28 + 38 + 48 + 58... Find the sum of the first seven terms.

• 1644

• 812

• 406

• 3290

Evaluate the arithmetic series described:

14 + 23 + 32 + 41..., Find the sum of the first eleven terms.

• 1296

• 1298

• 2604

• 649

Evaluate the arithmetic series described:

0 - 7 - 14 - 21..., Find the sum of the first seventeen terms.

• -959

• -1904

• -952

• -1918

What is the sum of the first 50 terms of the series 2 + 17 + 32 + 47 + ...?

• 1,600
• 18,235
• 18,475
• 19,125

Find the indicated sum for the arithmetic series:
S₂₀ for 4 + 7 + 10 + 13 + ...

• S₂₀ = 650
• S₂₀ = -606
• S₂₀ = 600

A theater has 32 rows of seats. If there are 26 seats in the 1st row, 30 in the 2nd, 34 in the 3rd, and so on, how many seats are there in all?

• 3654

• 1259

• 5230

• 2816

In his piggy bank, Bingo dropped $1.00 on May 1, $1.75 on May 2, $2.50 on May 3 and so on until the last day of May.

How much money did Bingo save in the month of May?

• $24.25

• $379.75

• $82.50

• $253.25

There is a stack of logs in the backyard. There are 15 logs in the 1^st layer, 14 in the second, 13 in the third, 12 in the fourth, and so on with the last layer having one log. How many logs are in the stack?

• 180

• 150

• 120

• 90