Question # 1

The 6th term of the sequence 7,9,12,16......is

Choose an answer

27

32

20

19

The series obtained by adding the terms of an arithmetic sequence is called the

Choose an answer

Infinite series

Harmonic series

Geometric series

Arithmetic series

A sequence is a functions whose domain is a subset of the set of

Choose an answer

Natural numbers

Real numbers

Whole numbers

Rational numbers

The element range of sequence are called

Choose an answer

Series

progression

Members

Terms

Find the geometric mean between 4 and 16

Choose an answer

How many numbers are there between 103 and 750 which are divisible by 6

Choose an answer

125

107

108

113

Choose an answer

12

13

14

15

an - an-1 will be common difference in an A.P if

Choose an answer

n = 1∀n∈ N

n>1∧n∈N

n∈Z

None of the above

The third term of a G.P. is the square of first term. If the second term is 8, then the 6th term is

Choose an answer

120

124

128

132

Choose an answer

2²- n - 1

1 - 2^-n

n + 2^-n-1

2ⁿ- 1

If a, b, c, d, e, f are in A.P.,then e-c is equal to

Choose an answer

2(c - a)

2(f - d)

2(d - c)

d - c

A number H is said to be the H.M. between a and b if a, H, b are in

Choose an answer

A.P.

G. P.

H. P.

None of these

The number of divisors of 1029, 1547 and 122 are in

Choose an answer

A.P.

G.P.

H.P.

None of these

How many term are there in the A.P, in which a₁ = 11 , a_n =68, d=3

Choose an answer

30

27

20

21

If a^x= b^y= c^zand a, b, c are in G.P. then x, y, z are in

Choose an answer

A.P.

G.P.

H.P.

None of these

In following question, a number series is given with one term missing. choose the correct alternative that will same pattern and fill in the blank spaces.1 , 4, 9, 16, 25, x

Choose an answer

35

36

48

49

The sixth term of the sequence 1,3,12,60....is

Choose an answer

1500

72

2160

2520

If a₁= a₂= 2, a_n= a_n-1- 1 (n > 2), then a₅is

Choose an answer

1

0

-1

-2

If S_rdenotes the sum of the first r terms of a G.P., then S_n, S_2n- S_n, S_3n- S_2nare in

Choose an answer

A.P.

G.P.

H.P.

None of these

Every term of a G.P. is positive and also every term is the sum of two preceding terms. Then the common ratio of the G.P. is

Choose an answer

99th term of the series 2 + 7 + 14 + 23 + 34 + ..... is

Choose an answer

9998

9999

10000

None of these

A sequence having no last term is called

Choose an answer

arithmetic sequence

Geometric sequence

Finite sequence

Infinite sequence

The common ration of a geometric sequence cannot be

Choose an answer

0

1

2

3

an -an-1,∀n∈N∧n>1 in an A.P is called

Choose an answer

Common difference

nth term

Common ratio

None of these

3, 6, 12,.... is

Choose an answer

A.P

G.P.

H.P.

None of these

The 6th term of an arithmetic sequence whose first term is 3 and common difference in zero is

Choose an answer

18

6

3

0

For an arithmetic series to be convergent it is necessary that the series has

Choose an answer

Finite terms

d<0

Infinite terms

None of these

The sum of n terms of a series is denoted by

Choose an answer

d

n

S_n

a_n

Choose an answer

If x,y are two positive distinct numbers then

Choose an answer

A>G>H

A<G<H

A=G=H

None of these

More Classes

Other Links

ECAT Mathematics Chapter 8 Sequences and Series Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer