SaiBook.us Algebra

Lesson Example Discussion Quiz: Class Homework

Quiz In Class

Title: Geometric progression

Grade: 9-a Lesson: S4-L7

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the five problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: in Class

Problem Id	Problem	Options
1	Find the sum of the geometric series –3 + 12 – 48 + … where there are 12 terms in the series	A) -125625 B) -235675 C) -2516583 D) 220625
2	Find the sum of the geometric series –8 + 16 – 32 + …. where there are 17 terms in the series	A) -489619 B) -349528 C) -144864 D) -184441
3	Find the sum of the geometric series 1,11,121,1331,….. where there are 6 terms in the series	A) 135894 B) 121485 C) 112154 D) 177156
4	Find the sum of the geometric series 3,9,27,81	A) 120 B) 240 C) 180 D) 480
5	Find the sum of the geometric series 1, − 5, 25, −125	A) -112.5 B) -105.8 C) -125.8 D) -156.5

Problem Id

Problem

Options

Find the sum of the geometric series –3 + 12 – 48 + … where there are 12 terms in the series

A) -125625

B) -235675

C) -2516583

D) 220625

Find the sum of the geometric series –8 + 16 – 32 + …. where there are 17 terms in the series

A) -489619

B) -349528

C) -144864

D) -184441

Find the sum of the geometric series 1,11,121,1331,….. where there are 6 terms in the series

A) 135894

B) 121485

C) 112154

D) 177156

Find the sum of the geometric series 3,9,27,81

A) 120

B) 240

C) 180

D) 480

Find the sum of the geometric series 1, − 5, 25, −125

A) -112.5

B) -105.8

C) -125.8

D) -156.5