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
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
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
Which terms of the G.P 2, 2√2, 4,........ is 128?
13
15
The nth term of G.P 5, 25, 125 is
5n
5n-1
5n+1
n5
How many terms of the G.P 3, 3/2, 3/4......... are needed to give the sum 3069/512?
11
9
8
If G is geometric mean of numbers a and b then G =
√ab
±√ab
ab
a/b
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 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
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
