Lesson Example Discussion Quiz: Class Homework |
Quiz Discussion |
Title: Consecutive terms of A.P |
Grade: 9-a Lesson: S4-L5 |
Explanation: Let us discuss a few questions on this topic and review the answers to every question. |
Quiz: Discussion in Class
| Problem Id | Problem | Options |
|---|---|---|
Steps 1 |
For what value of k will k + 4,2k - 3 and 2k + 7 are the consecutive terms of an A.P.? |
A) 21 B) 19 C) 17 D) 8 |
Steps 2 |
How many terms of the A.P. 20,16,12,… be taken so that their sum is zero? |
A) 11 B) 10 C) 9 D) 4 |
Steps 3 |
If the sum of first 8 terms of an A.P. is 64 and that of its first 18 terms is 324, find the sum of first n terms of the A.P |
A) \$n(n+1)\$ B) \$(n(2n + 1))/3\$ C) \$n^3\$ D) \$n^2\$ |
Steps 4 |
Find the middle term of the AP 7,13,19,…, 343. |
A) 80 B) 75 C) 70 D) 85 |
Steps 5 |
The fourth term of an A.P. is 18. The sum of the fifth and seventh terms of the A.P. is 44. Find its common difference |
A) 5 B) 3 C) 4 D) 2 |
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