First Year Mathematics Chapter 6 Online MCQ Test for 1st Year Mathematics Chapter 6 (Sequences and Series)

What is called the difference between two consecutive terms of an arithmetic sequence ?

• common ratio A
• common difference B
• common element C
• none of these D

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

• 2 A
• -2 B
• -3 C
• none of these D

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

• 50 A
• 250 B
• 100 C
• 500 D

Domain of finite sequence is:

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

Which number cannot be a term of a geometric sequence ?

• 0 A
• 1 B
• -1 C
• r D

What is the general term of the sequence 2, 4, 6, 8, ........... ?

• 2n A
• n + 1 B
• 2n² C
• none of these D

A.M between x - 3 & x + 5 is __________:

• x + 1 A
• x - 1 B
• 2x + 2 C
• none D

If there are six G.Ms between 3 and 284 then G₄ =

• 24 A
• 48 B
• 12 C
• 6 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 general term of the geometric sequence -1, 1, -1, 1 ....... ?

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

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

• 81 A
• 75 B
• 211 C
• none D

Arithmetic series is only possible if:

• |d| = 1 A
• |d| < 1 B
• |d| > 1 C
• none D

A sequence of numbers whose reciprocal form an arithmetic sequence, is known as:

• arithmetic sequence A
• geometricsequence B
• harmonicsequence C
• none of these D

The product of three G.Ms between 1 and 16 is:

• 32 A
• 64 B
• 128 C
• 16 D

• A.P A
• G.P B
• H.P C
• none D

If a_n-3 = 2n - 5 then a_n =

• 2n-1 A
• 2n+1 B
• 2n+3 C
• none D

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

• -10 A
• 10 B
• 7 C
• 5 D

An infinite sequence has no:

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

A sequence is denoted by:

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

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

• 24 A
• 41 B
• 32 C