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10 questions
Choose the correct answer from the given four options: In an AP, if d = –4, n = 7, an = 4, then a is
6
7
20
28
If the common difference of an AP is 5, then what is a18 – a13 ?
5
15
25
10
Choose the correct answer from the given four options: In an AP if a = –7.2, d = 3.6, an = 7.2, then n
2
3
4
5
The first four terms of an Arithmetic Progression whose first term is -2 and the common difference is -2 is _____
-2, 0, 2, 4
-2, 4, -8, 16
-2, -4, -6, -8
-2, -4, -9, -16
The sum of first 'n' terms of an AP is (3n2+ 6n). The common difference of the AP is ______
6
9
15
-3
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
The (n – 1)th term of an A.P. is given by 7,12,17, 22,… is
5n+2
5n+3
5n-2
5n-3
The sum of all two digit odd numbers is
2475
2575
2524
2425
If 4, x1,x2,x3,28 are in AP then x3 is ______
19
22
20
cannot be determined.
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