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Quiz Discussion

The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?

Course Name: Quantitative Aptitude

1] 28
2] 87
3] 51
4] 17

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1 Discuss	What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55? 1] 219 2] 279 3] 231 4] 137 Solution
10 Discuss	The 7th and 12th term of an arithmetic progression are -15 and 5 respectively. What is the 16th term? 1] 25 2] 29 3] 21 4] 33 Solution
2 Discuss	The common difference of the A.P. $\frac{1}{3}, \frac{{1 - 3b}}{3} , \frac{{1 - 6b}}{3}$ . . . . . . is 1] $\frac{1}{3}$ 2] $- \frac{1}{3}$ 3] -b 4] b Solution
3 Discuss	If the sum of n terms of an A.P. is 3n2 + 5n then which of its terms is 164 ? 1] 26th 2] 27th 3] 28th 4] None of these Solution
4 Discuss	Which term of the A.P. 92, 88, 84, 80, ...... is 0? 1] 23 2] 32 3] 24 4] 28 Solution
5 Discuss	If four numbers in A.P. are such that their sum is 50 and the greatest number is 4 times the least, then the numbers are 1] 5, 10, 15, 20 2] 4, 10, 16, 22 3] 3, 7, 11, 15 4] None of these Solution
6 Discuss	If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18th term of the AP will be 1] 0 2] 1 3] 2 4] -1 Solution
7 Discuss	The 2^nd and 6^th term of an arithmetic progression are 8 and 20 respectively. What is the 20^th term? 1] 56 2] 62 3] 65 4] 69 Solution
8 Discuss	If the 7^th term of a H.P. is 1/10 and the 12^th term is 1/25, then the 20^th term is 1] 1/41 2] 1/45 3] 1/49 4] 1/37 Solution
9 Discuss	If Sn denote the sum of the first n terms of an A.P. If S2n = 3Sn , then S3n : Sn is equal to 1] 4 2] 6 3] 8 4] 10 Solution
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