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
Which terms of the G.P 2, 2√2, 4,........ is 128?
12
13
14
15
The nth term of G.P 5, 25, 125 is
5n
5n-1
5n+1
n5
Which term of the G.P, 2, 8, 32.......... up to n term is 131072?
8th term
9th term
7th term
6thterm
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 G is geometric mean of numbers a and b then G =
√ab
±√ab
ab
a/b
How many terms of the G.P 3, 3/2, 3/4......... are needed to give the sum 3069/512?
10
11
9
8
The number of terms of the A.P 3, 7, 11, 15--- to be take so that the sum is 406
5
Given an = (n+1)2/n then a7 is
64
67
49/8
64/7
1 + 2 + 3 +........30 =
465
930
900
500
