ECAT Mathematics MCQ's Test For Full Book With Answers

ECAT Mathematics MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 The sum of all positive integral multiple of 5 less than 100 is 950 760 1230 875
2 The sum of all odd numbers between 100 and 200 is 6200 7500 6500 3750
3 The sum if 1,3,5,7,9........ up to 20 terms is 400 472 563 264
4 The sides of a right angled triangle are in A.P The ratio of sides is 1:2:3 3:4:5 2:3:4 5:8:3
5 The nth term of an A.P is (3n+5) Its 75th term is 26 7 21 Cannot be determined
6 The5thand 13th terms of an A.P are 5 and-3 respectively The first term of the A.P is 1 -15 9 2
7 Which term of the A.P 5,8,11,24.............is 320 104th 106th 105th 64th
8 The sum of all 2 digit number is 4750 3776 4895 4905
9 The sum of first 60 natural numbers is 1830 3660 1640 1770
10 How many numbers are there between 103 and 750 which are divisible by 6 125 107 108 113
11 For an A.P common difference d Can be zero May or may not zero Cannot be zero None of these
12 For an arithmetic series to be convergent it is necessary that the series has Finite terms d<0 Infinite terms None of these
13 An infinite arithmetic series is always Convergent Oscillatory Divergent None of these
14 If Sn is a definite number as n → ∞,then the geometric series is Convergent Divergent Oscillatroy None of these
15 The sum of infinite numbers of terms of an arithmetic series is Finite Infinite May or may not finite None of these
16 The sum of indicated terms of a sequence is called Arithmetic series Series Harmonic series None of these
17 an - an-1 will be common difference in an A.P if n = 1∀n∈ N n>1∧n∈N n∈Z None of the above
18 For three consecutive terms in A.P middle term is called A.M nth term Central term None of these
19 If A is such that a,A,B are in A.P then A is called A.M Common ratio Common difference None of these
20 In an A.P,a +(n-a)d is 1st term General term Last term None of these
21 an -an-1,∀n∈N∧n>1 in an A.P is called Common difference nth term Common ratio None of these
22 If all members of a sequence are real numbers then it is called A.P Real Sequence G.P None of these
23 If x,y are two -ve distinct numbers then A>G>H A<G<H A=G=H None of these
24 If x,y are two positive distinct numbers then A>G>H A<G<H A=G=H None of these
25 A,G,H are in A.P G.P H.P None of these
26 A sequence whose reciprocal is an A.P is called Oscillator H.P G.P None of these
27 A Series which does not coverage to a Unique sum is called Harmonic Series Oscillatroy Series Arithmetic Series None of these
28 A Geometric Series is divergent only if |r|>1 |r|≥1 |r|=1 None of these
29 The three consecutive numbers a,√ab,b are in G.P H.P G.M None of these
30 If G is a G.M between a and b then a,G,b are in A.P H.P G.P None of these
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