1. S17 − S16 = ?
(a) S1 (b) T1 (c) T17 (d) 2d
2. T10 of an AP = 31 & T20 = 71 then T30 = ?
(a) 171 (b) 222 (c) 112 (d) 111
3. No. of terms of the sequence −12, −9, −6, −3, …….. must be added to make the sum 54 are _____
(a) 33 (b) −46 (d) 10 (d) 12
4. If ‘n’ times the ‘n’th term an AP is equal to m times its ‘m’th term, then (m + n)th term is _____
(a) 0 (b) 1 (d) −1 (d) 2
5. The sum of three numbers in an AP is (−3), and their product is 8. Then numbers are
(a) −4, −1, 2 (b) −4, −1, −2 (c) 4, 1, 2 (d) 2, 1, −4
6. The sum of four numbers is 20 and sum of whose squares is 120. This nos. are _____
(a) 2, 4, −6, −8 (b) 2, 4, 6, 8 (c) 8, 6, 2, −1 (d) 8, 6, −2, 1
7. The nth term of a pattern of numbers is 2n + 1. The common difference of this AP is ________.
(a) 2 (b) −2 (c) 3 (d) −3
Answers
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