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

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

• 2n-1 A
• 2n+1 B
• 2n+3 C
• none D

What is called the arrangement of numbers formed according to some definite rule ?

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

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

• -10 A
• 10 B
• 7 C
• 5 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

Domain of finite sequence is:

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

• A.P A
• G.P B
• H.P C
• none D

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

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

In an A.P.a₃ = 12 and a₇ = 32 then d = :

• 5 A
• 3 B
• 7 C
• 9 D

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

• divergent A
• convergent B
• oscillatory 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

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

• 24 A
• 41 B
• 32 C

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

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

• 81 A
• 75 B
• 211 C
• none D

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

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

Sum of all odd numbers between 100 and 200 is:

• 6200 A
• 6500 B
• 3750 C
• 7500 D

Arithmetic series is only possible if:

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

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

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

Two A.Ms. between 3 and 9 are:

• 3. 6 A
• 5, 7 B
• 6, 12 C
• 3, 9 D

Zero cannot be a term of:

• A.P and G.P A
• G.P and H.P B
• A.P and H.P C
• only H.P D

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

• 50 A
• 250 B
• 100 C
• 500 D