Question # 1

The nth term of a G.P. is

Choose an answer

a₁rⁿ

a₁rⁿ⁺¹

a₁r^n-1

a₁r^-n

Let the sequence 1, 2, 2, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, ..... where n consecutive terms have the value n, then 1025th term is

Choose an answer

2⁹

2¹⁰

2¹¹

2⁸

If all members of a sequence are real numbers then it is called a

Choose an answer

Series

Function

Real sequence

Range

If G is a G.M between a and b then a,G,b are in

Choose an answer

A.P

H.P

G.P

None of these

An A.P., a G.P. and a H.P. have the same first and last terms and the same odd numbers of terms, the middle terms of the three series are in

Choose an answer

A.P.

G.P.

H.P.

None of these

Given two numbers a and b. Let A denote the single A.M. between these and S denote the sum of n A.M.'s between them. Then S/A depends upon

Choose an answer

n, a, b

n, a

n, b

n

1 + 2 + 3 + ...... + n = ______

Choose an answer

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

Choose an answer

9998

9999

10000

None of these

If x, y, z are the pth, qth, rth terms of an A.P. and also of G.P., then x^y-z. y^z-x. z^x-yeqals

Choose an answer

xyz

0

1

None of these

The nth term of an A.P is (3n+5) Its 75th term is

Choose an answer

26

7

21

Cannot be determined

If a₁, r are first term and the common ratio respectively then the sum of an infinite geometric series is

Choose an answer

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

if a_{9 =19,a9=31 are the 6th and 9th term of an A.P. and d=4 is the common difference, then 18th term of the sequence is}

Choose an answer

65

67

71

75

The formula an = arn-1represents

Choose an answer

nth term of G.P

Sum of the first n terms

G.M between a and b

None of these

Choose an answer

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

Choose an answer

A.P.

G.P.

H.P.

None of these

Arithmetic mean between a and b is

Choose an answer

1/2

2

1/4

4

If A is such that a,A,B are in A.P then A is called

Choose an answer

A.M

Common ratio

Common difference

None of these

Sum of n terms of a geometric series if | r | < 1 is

Choose an answer

If A, G, H are the arithmetic, geometric and harmonic means between a and b respectively then A, G, H are in

Choose an answer

A. P.

G. P.

H. P.

None of these

A Series which does not coverage to a Unique sum is called

Choose an answer

Harmonic Series

Oscillatroy Series

Arithmetic Series

None of these

H.M. between 3 and 7 is

Choose an answer

Which one represents a sequence

Choose an answer

an

Sn

a(n)

{an}

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

If 6th term of a series in A.P, is -2 and 8th term is -8, the first term of the serie is

Choose an answer

13

-13

18

-10

The seventh term of an A.P whose first term is P and common difference is q. is

Choose an answer

P-6q

P+6q

P-4q

P-nq

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

Choose an answer

125

107

108

113

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 sum of the squares of three distinct real numbers, which are in G.P., is S². if their sum isαS then

Choose an answer

0

1

2

3

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

Choose an answer