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15 questions
If 4, x1,x2,x3,28 are in AP then x3 is ______
19
23
22
cannot be determined.
The sum of first 'n' terms of an AP is (3n2+6n). The common difference of the AP is ______
6
9
15
-3
The 5th term of an AP is -3 and its common difference is -4. The sum of its first 10 terms is_________
50
-50
30
-30
The common difference of the AP p1 , p1−p , p1−2p ........is
p
-p
-1
1
Which term of an AP 72, 63, 54, ...... is 0 ?
8th
9th
10th
11th
The 8th term of an AP is 17 and 14th term of an AP is 29. The common difference of the AP is _______
3
2
5
-2
Which term of the AP 21, 42, 63, 84, . . . . is 210?
9th
10th
11th
12th
2019th term of an AP is written as
a + 2018d
a + (2019 + 1) d
2018 d
2a + 2018 d
If 7 times the 7th term of an AP is equal to 11 times its 11th term, then its 18th term will be
7
11
18
0
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