Water flows into a tank. The volume of water in the tank at each minute form an A.P. If the initial volume was 5 litres and becomes 6 times after 6 minutes. The speed of water increase is
5 litres/min
6 litres/min
15 litres/min
2 litres/min
How many terms of the G.P 3, 32, 33,...... are needed to give the sum 120?
4
5
6
18
If m, p, q are consecutive terms in an A.P, then P is
mq/2
m - q/2
m2+q2/2
m + q/2
The 10th term of an A.P is 52 and 16th terms is 82. Then the 32nd term is
162
165
173
None of these
How many terms of the G.P 3, 3/2, 3/4......... are needed to give the sum 3069/512?
10
11
9
8
Which terms of the G.P 2, 2√2, 4,........ is 128?
12
13
14
15
If the sum of 3 numbers in A.P is 24 and their product is 440, then the numbers are
5, 8, 11
6, 9, 12
7, 10, 13
4, 8, 12
If the sum of n terms of an A.P is (Pn + qn2) where p and q are constants. Then the common difference is
2 + q
2q
2/q
2 - q
The first 3 terms of the sequence an = n+1/n+2 is
5/4, 4/3, 3/2
2/3, 3/4, 4/5
4/5, 3/4, 2/3
4, 3, 2
If the nth term of an AP is 6n - 1. Then its (n + 1)th term is __________
6n + 4
6n + 5
6n - 4
6n - 5
