SaiBook.us Algebra

Lesson Example Discussion Quiz: Class Homework

Quiz In Class

Title: Consecutive terms of A.P

Grade: 9-a Lesson: S4-L5

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	For what value ofk will the consecutive terms 2k + 9, 3k + 7 and 5k - 3 form an A.P.?	A) 8 B) 4 C) 6 D) 7
2	How many terms of the A.P. 70,65,60,… be taken so that their sum is zero?	A) 23 B) 24 C) 29 D) 25
3	If the sum of first 5 terms of an A.P. is 25 and that of its first 13 terms is 169, find the sum of first n terms of the A.P	A) \$ (n(n+2))/2 \$ B) \$ (n(n+5))/3 \$ C) \$ n^3 \$ D) \$ n^2 \$
4	Find the middle term of the AP 216,207,198,…,18.	A) \$a_16 = 111\$ B) \$a_12 = 117\$ C) \$a_13 = 89\$ D) \$a_11 = 120\$
5	The fifth term of an A.P. is 30 and the sum of its seventh and ninth terms is 72. Find the common difference of the A.P.	A) 8 B) 4 C) 2 D) 3

Problem Id

Problem

Options

For what value ofk will the consecutive terms 2k + 9, 3k + 7 and 5k - 3 form an A.P.?

A) 8

B) 4

C) 6

D) 7

How many terms of the A.P. 70,65,60,… be taken so that their sum is zero?

A) 23

B) 24

C) 29

D) 25

If the sum of first 5 terms of an A.P. is 25 and that of its first 13 terms is 169, find the sum of first n terms of the A.P

A) \$ (n(n+2))/2 \$

B) \$ (n(n+5))/3 \$

C) \$ n^3 \$

D) \$ n^2 \$

Find the middle term of the AP 216,207,198,…,18.

A) \$a_16 = 111\$

B) \$a_12 = 117\$

C) \$a_13 = 89\$

D) \$a_11 = 120\$

The fifth term of an A.P. is 30 and the sum of its seventh and ninth terms is 72. Find the common difference of the A.P.

A) 8

B) 4

C) 2

D) 3