Summation Notation, Geometric and Arithmetic Series

Q1. How many people live in the city?

• A) 149

• B) 11,200

• C) 5,600

• D) 140

Find the sum of the finite arithmetic series

7 + 14 + 21 + … + 105

• 840

• 620

• 245

• 1283

• 196
• 392
• 49
• 254

Find the sum of a geometric series where

a₁=4, r = -2 , a_n = 16,384

• -10,921.3333333

• 10,922

• 10,924

• -10,924

Find the sum of the geometric series.

• 248

• 124

• 120

• 240

Find the sum for the following series. 

• 44

• -162

• -682

• 324

Find the sum of this geometric series

• 3956

• 5873

• 4096

• 4084

Find the sum for the following series. 

• 49

• 3.14

• 1.33

• 1.66

Which is the sum of the geometric series described above.

• 37180.1

• 43690.5

• 30091.9

• -0.1666666667

Find the sum of the geometric series.

• 732

• -732

• 244

• -244