In an arithmetic sequence first and fourth numbers are 24 and 42. Find the third number.
30
36
28
21
The nth term of an AP is (3n - 8). Then the sum of its first 5 terms is
11
5
-11
-5
First term is 16 and third term is 22. Find the second term
27
19
35
The second term of an AP is (x - y) and the 5th term is (x + y) then its first term is
x - (1/3y)
x - (2/3y)
x - (4/3y)
x - (5/3)y
The first and 5th terms of an AP are 6a and -6a. Then the common difference is
-3a
3a
0
6a
The nth term of the sequence 3, 6, 9.... is
3n+1
3n
3n+2
None of these
Third term is 16 and the fourth term is 22. Find the first term.
1
2
3
4
Second number of an arithmetic sequence is 10 . Find the sum of the first and third number
20
25
38
If 103 is the first term of an AP and -22 is the common difference then the second term is
125
81
-4.6
Find the missing number. 24, 42, ________, ________
60, 78
78, 92
50, 85
48, 71
