Question # 1

1/2,1/3,1/4,1/5.........is

Choose an answer

a geometric sec

an arithmetric series

finite sequence

an infinite sequece

If the pth, qth, and rth terms of an A.P. are in G.P:., then the common ratio of the G.P. is

Choose an answer

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

1

2

3/2

5/2

Choose an answer

an A.P.

a G.P.

a H.P.

None of these

H.M. between 3 and 7 is

Choose an answer

A sequence of number whose reciprocals form an arithmetic sequence is called

Choose an answer

Geometric sequence

Arithmetic series

Harmonic sequence

Harmonic series

Choose an answer

The difference of two consecutive terms of an A.P is called the

Choose an answer

Common difference

Common ratio

Geometric series

Geometric mean

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

Choose an answer

sequence

progression

Series

Mean

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

Choose an answer

104th

106th

105th

64th

The third term of the sequence a_n= (-1)^n-1(n-7) is ______

Choose an answer

8

4

-4

8

If x,y are two positive distinct numbers then

Choose an answer

A>G>H

A<G<H

A=G=H

None of these

The consecutive terms of a progressions are 30, 24, 20. The next term of the progression is

Choose an answer

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

Choose an answer

27

32

20

19

Arithmetic mean between a and b is

Choose an answer

A function whose domain is a subset of natural numbers is called ______

Choose an answer

Identity function

Sequence

Onto function

Series

Arithmetic mean between x - 3 and x + 5 is

Choose an answer

x + 1

x + 2

x + 3

x + 4

Choose an answer

2

-3/2

1

0

Choose an answer

1/2

2

1/4

4

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 number of divisors of 1029, 1547 and 122 are in

Choose an answer

A.P.

G.P.

H.P.

None of these

The sum of all 2 digit number is

Choose an answer

4750

3776

4895

4905

The 31 term of the A.P 5,2,-1.....is

Choose an answer

-82

82

85

-85

The series obtained by adding the terms of a geometric sequence is called

Choose an answer

Infinite series

Arithmetic series

Geometric series

Harmonic series

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

If a₁, r and a_nare the first term, common ratio and the nth term respectively of a G. P. then a_n=

Choose an answer

a₁rⁿ

a₁r^n-1

a₁rⁿ⁺¹

a₁r

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

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

Choose an answer

Series

Function

Real sequence

Range

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