Question # 1

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

If a₁and r are the first term and the common ratio respectively then (n + 1)th term of the G.P. is

Choose an answer

0

a₁r^n-1

a₁rⁿ⁺¹

a₁rⁿ

If a, b, c are in A.P., then 3^a, 3^b, 3^care in

Choose an answer

A.P.

G.P.

H.P.

None of these

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

Choose an answer

A.M

A.P

G.P

G.M

The n numbers A₁,A₂,A₃,.....A_nare called an arithmetic means between a and b if a.A₁,A₂,A₃.....A_n, b is ______

Choose an answer

An arithmetic series

An arithmetic sequence

A geometric sequence

A harmonic sequence

In an A.P,a +(n-a)d is

Choose an answer

1st term

General term

Last term

None of these

The sum of an indicated number of terms in a sequence is called

Choose an answer

sequence

progression

Series

Mean

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

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

The 10th common term between the series 3+7+11+....... and 1 + 6 +11 + ....... is

Choose an answer

191

193

211

None of these

Choose an answer

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

An A.P. consists of n(odd terms) and its middle term is m. then the sum of the A.P. is

Choose an answer

2 mn

1/2 mn

mn

mn²

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

Choose an answer

1, 1/2, 0

1, 2, 1

1, 2, 3

1, 2, 0

No term of a harmonic sequence can be

Choose an answer

0

1

2

3

The5thand 13th terms of an A.P are 5 and-3 respectively The first term of the A.P is

Choose an answer

1

-15

9

2

Choose an answer

If b₁, b₂, b₃, ... are in G.P. with first term unity and common ratio r, then the minimum value of b₁- b₃+ b₅is equal to

Choose an answer

3/4

1/4

1

None of these

3, 6, 12,.... is

Choose an answer

A.P

G.P.

H.P.

None of these

Find the next two terms of 7, 9, 12, 16,...

Choose an answer

18, 20

19, 22

20, 25

21, 27

If p, q, r and in A.P., a is G.M. between p and q and b is G.M. between q and r, then a², q², b²are in

Choose an answer

A.P.

G.P.

H.P.

None of these

5th term of a G.P. is 2, then the product of first 9 terms is

Choose an answer

256

128

512

None of these

An infinite sequence has no

Choose an answer

nth term

Last term

Sum

None of these

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, b, c are in AP., a, b, c are in G.P. then A, m²b, c are in

Choose an answer

A.P.

G.P.

H.P.

None of these

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

-2, 1, 4, 7,.... is ______

Choose an answer

Harmonic sequence

Arithmetic sequence

Geometric sequence

Arithmetic series

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

Choose an answer

1

0

-1

-2

What is the 26th term of the sequence, if its general term is a_{n = (-1)}ⁿ⁺¹

Choose an answer

2

26

27

1

Choose an answer

0

1

2

3

More Classes

Other Links

Mathematics ECAT Pre Engineering 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