The second term of an AP is (x - y) and the 5th term is (x + y) then its first term is
x - y/3
x - 2y/3
x - 4y/3
x - 5y/3
Compute 1 + 2 + 3 + 4 + ...... + 100.
5000
5050
6000
6060
The middle term of the AP 1, 8, 15....... 505 is
263
243
253
203
Sum of first 10 natural numbers is
50
53
55
57
kth term of an AP is 5k + 1. Then the sum of n terms is
n/2 [5n + 7]
n/2 [7n + 5]
n/2 [5n - 7]
(n / 2)5n
The number of even numbers between 1 and 199 is
98
99
100
101
Two A.P.'s have the same common difference. The first term of one of these is 3, and that of the other is 8. What is the difference between their 2nd terms?
2
3
4
5
If the nth term of the series 3 + 10 + 17 +.......... and 63 + 65 + 67 ........ are equal. Then the value of n is
12
13
14
15
In a certain AP, 5 times the 5th term is equal to 8 times the 8th term, then its 13th term is
0
-1
-12
-13
Which term of the A.P 21, 18, 15, ..... is 0?
6th
7th
8th
9th
