ECAT Mathematics Chapter 8 online mcq test with answers for chapter 8 (Sequences and Series)

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ECAT Mathematics Chapter 8 Important MCQ's

Sr.#	Question	Answer
1	A,G,H are in	A. A.P B. G.P C. H.P D. None of these
2	The A.M. of two numbers is 34 and G.M. is 16, the numbers are	A. 2 and 64 B. 64 and 3 C. 64 and 4 D. None of these
3	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	A. xyz B. 0 C. 1 D. None of these
4	A Series which does not coverage to a Unique sum is called	A. Harmonic Series B. Oscillatroy Series C. Arithmetic Series D. None of these
5	The 31 term of the A.P 5,2,-1.....is	A. -82 B. 82 C. 85 D. -85
6		A. 1/2 B. 2 C. 1/4 D. 4
7	A number A is said to be the A.M between the two numbers a and b if a, A, b are in	A. A.M B. A.P C. G.P D. G.M
8	The 7th term of the A.P 7,11,15,is	A. 24 B. 31 C. 26 D. 23
9	Write the first four terms of the sequence if a_n= (-1)ⁿn²	A. -1, 4, -9, 16 B. 1, -4, 9, 16 C. 1, 4, 9, 16 D. None of these
10	If a₁, r are first term and the common ratio respectively then the sum of an infinite geometric series is

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ECAT Pre Engineering Mathematic MCQ Test With Answer for Chapter 8 (Sequences and Series)

MCQ's Test For ECAT (Pre-Eng) Mathematics Chapter 8 Sequences and Series

ECAT (Pre-Eng) Mathematics Chapter 8 Sequences and Series

If x,y are two -ve distinct numbers then

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

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

If an= 2n -3, write the first four terms

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

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

The sum of all 2 digit number is

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

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

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

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

The sum of indicated terms of a sequence is called

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

Write the first four terms of the sequence if an= (-1)nn2

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

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

An infinite sequence has no

If ax= by= czand a, b, c are in G.P. then x, y, z are in

Arithmetic mean between a and b is

If three unequal numbers p, q, r are in H.P. and their squares are in A.P., then the ration p : q : r is

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

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

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

Find the geometric mean between 4 and 16

Find the sum of the infinite geometric series 2 + 1 + 0.5 + ....

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

H.M. between 3 and 7 is

An infinite arithmetic series is always

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

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

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Top Scorers Of ECAT (Pre-Eng) Mathematics Chapter 8 Sequences and Series MCQ`s Test

ECAT Mathematics Chapter 8 Important MCQ's

Test Questions

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

If a_n= 2n -3, write the first four terms

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 ______

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

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

Write the first four terms of the sequence if a_n= (-1)ⁿn²

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

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