The reciprocal of the terms of A.P. form:

• A.P A
• G.P B
• H.P C
• none of these D

The sum of 10 A.Ms between 3 and 47 is:

• 50 A
• 250 B
• 100 C
• 500 D

An infinite sequence has no:

• nth term A
• last term B
• sum C
• none D

Fifth term of the sequence 2, 6, 11, 17.

• 24 A
• 41 B
• 32 C

Sum of all positive integral multiples of 3 less than 100 is:

• 950 A
• 760 B
• 1230 C
• 875 D

• A.P A
• G.P B
• H.P C
• none D

If S is the H.M between 2 and b then b = :

• -10 A
• 10 B
• 7 C
• 5 D

Sum of integral multiples of there between 4 and 22 is:

• 81 A
• 75 B
• 211 C
• none D

A geometric series is convergent only if:

• | r | > 1 A
• | r | < 1 B
• | r | = 1 C
• none of these D

The next term of the sequence-1, 2, 12, 40, .........is:

• 112 A
• 212 B
• 144 C
• none D

A sequence is denoted by:

• 
  A
• {a_n} B
• a_n C
• a₁ + (n-1) d D

A.M between 1 + x - x² and 1 + x + x² is:

• 1 + x² A
• 1 + x B
• 2 C
• none D

7th term of G.P 3, 6, 12 ..... is:

• 512 A
• 192 B
• 48 C
• 96 D

What is the general term of the geometric sequence -1, 1, -1, 1 ....... ?

• (-1)ⁿ A
• (1)ⁿ B
• (-1)^n-1 C
• none of these D

If a_n-1 = 2n - 3 then a_n+1 =

• 2n - 1 A
• 2n + 1 B
• 2n + 3 C
• none D

Sum of all odd numbers between 100 and 200 is:

• 6200 A
• 6500 B
• 3750 C
• 7500 D

Domain of finite sequence is:

• set of natural numbers A
• subset of N B
• R C
• none D

The series 2 + 2 + 2 ..... is:

• divergent A
• convergent B
• oscillatory C
• none of these D

G.M between -2i and 8i is:

• 4 or -4 A
• 4i or -4i B
• 2 or -2 C
• none D

What is the next term in the sequence 10, 7, 4, 1...........?

• 2 A
• -2 B
• -3 C
• none of these D