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
Given an = (n+1)2/n then a7 is
64
67
49/8
64/7
If G is geometric mean of numbers a and b then G =
√ab
±√ab
ab
a/b
The nth term of G.P 5, 25, 125 is
5n
5n-1
5n+1
n5
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
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
The number of terms of the A.P 3, 7, 11, 15--- to be take so that the sum is 406
5
10
12
14
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
The income of a person is 3,00,000 in the first year and he receives an increase of Rs. 10,000 to his income per year for the next 19 years. Then the total amount, he received in 20 years is
80,00,000
79,00,000
78,00,000
69,00,000
How many terms of the G.P 3, 3/2, 3/4......... are needed to give the sum 3069/512?
11
9
8