Question # 1

If 5,7 and 9 are A.Ms between a and b, then a and b is equal to

Choose an answer

2 and 12

1 and 10

3 and 11

-7 and 2

Choose an answer

If the domain of sequence is finite set then the sequence is called

Choose an answer

geometric sequence

infinite sequence

finite sequence

arithmetic sequence

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

1,1/3,1/5,1/7,1/9..... is a

Choose an answer

geometric sequence

finite sequence

infinite sequence

arithmetic series

Which term of the A.P 5,8,11,24.............is 320

Choose an answer

104th

106th

105th

64th

The sum of first twenty odd integers in A.P is

Choose an answer

400

397

404

408

If x,y are two -ve distinct numbers then

Choose an answer

A>G>H

A<G<H

A=G=H

None of these

Which one represents a sequence

Choose an answer

an

Sn

a(n)

{an}

The A.M. of two numbers is 34 and G.M. is 16, the numbers are

Choose an answer

2 and 64

64 and 3

64 and 4

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

Sequence also called..............

Choose an answer

Series

Function

progressions

Elements

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

The harmonic mean between a and b is

Choose an answer

If Sn is a definite number as n → ∞,then the geometric series is

Choose an answer

Convergent

Divergent

Oscillatroy

None of these

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

Choose an answer

125

107

108

113

The general term of the A.P. is

Choose an answer

a₁+ (n - 1) d

n + (a₁- 1) d

d + (n - 1) a₁

None of these

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

Choose an answer

A.P

Real Sequence

G.P

None of these

Choose an answer

2

-3/2

1

0

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

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

p, q, r and s are integers. If the A.M. of the roots of x2- px + q2= 0 and G.M. of the roots of x2- rx + s2= 0 are equal, then

Choose an answer

q is an odd integer

r is an even integer

p is an even integer

s is an odd integer

Choose an answer

if a₁ =3, d=7 and a_n =59 , then the number of terms in A.P is

Choose an answer

7

9

11

13

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 a,b,c are in arithmetic progression, then 1/a,1/b.1/c are in

Choose an answer

A.M

G.M

H.M

G.P

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

Choose an answer

191

193

211

None of these

The third term of a G.P. is 4, The product of first five terms is

Choose an answer

43

45

46

None of these

Choose an answer

an A.P.

a G.P.

a H.P.

None of these

A Geometric Series is divergent only if

Choose an answer

|r|>1

|r|≥1

|r|=1

None of these

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

More Classes

Other Links

ECAT Pre General Science 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