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Recent questions tagged engineering-mathematics

0 votes

1 answer

1021

ISRO 2011-ECE Mathematics
a) 3/2 b) 2/3 c) 8/9 d) 8/13

sh!va asked in Calculus Feb 28, 2017

by sh!va

236 views

0 votes

1 answer

1022

ISRO 2011- Engineering mathematics
.

sh!va asked in Linear Algebra Feb 28, 2017

by sh!va

263 views

0 votes

1 answer

1023

ISRO 2011-ECE Linear Algebra
Which of the following system is linear? a) $y(n)$ = $e^{x(n)}$ b) $y(n) $= A$x(n$)+B c) $y(n) $= $x$($n ^2$) d) $y(n) $= $x ^2(n)$

sh!va asked in Linear Algebra Feb 28, 2017

by sh!va

454 views

0 votes

1 answer

1024

ISRO 2011- ECE Mathematics
.

sh!va asked in Linear Algebra Feb 28, 2017

by sh!va

333 views

1 vote

4 answers

1025

ISRO2012-ECE Probability
Person $\text{X}$ can solve $80\%$ of the ISRO question paper and Person $\text{Y}$ can solve $60\%.$ The probability that at least one of them will solve a problem from the question paper, selected at random is : a. $0.48$ b. $0.70$ c. $0.88$ d.$ 0.92$

sh!va asked in Probability Feb 28, 2017

by sh!va

1.3k views

0 votes

1 answer

1026

ISRO 2012- ECE Probability
a) 0 & 1 b) 1 & 2 c) 1 & 4 d) None of these

sh!va asked in Probability Feb 28, 2017

by sh!va

486 views

0 votes

4 answers

1027

ISRO 2012- ECE Matrices
The Eigen values of matrix are: a) ± cos∝ b) ± sin ∝ c) tan ∝ & cot ∝ d) cos ∝ ± sin ∝

sh!va asked in Linear Algebra Feb 28, 2017

by sh!va

732 views

1 vote

1 answer

1028

ISRO2012-ECE: Engineering Mathematics
The area bounded by the curves $y^2 =x, y=x $ is given by $2/3$ $1/2$ $1/6$ $1/3$

sh!va asked in Calculus Feb 28, 2017

by sh!va

319 views

1 vote

2 answers

1029

ISRO2012-ECE Engineering Mathematics
$1-x$ $(1-x)/x$ $1/x$ $x/(1-x)$

sh!va asked in Calculus Feb 28, 2017

by sh!va

524 views

–1 vote

0 answers

1030

ISRO 2012- ECE : Engineering mathematics
If $A$, $B$ & $C$ are vectors and $A = 1.u_ x + 2.u _y + 3.u_ z$ , $B = 1.u _x+ 1.u _y + 1.u _z$ , and $C = 3.u _x+ 2.u _y + 1.u _z$ then ($A$ x $B$).$C$ is : a) 2 b) 1 c) 0 d) -1

sh!va asked in Linear Algebra Feb 28, 2017

by sh!va

302 views

0 votes

0 answers

1031

probability
i am not able to understand "when to use poisson random variable" concept comparing to other random variables ...can somebody explain ....

Vicky rix asked in Quantitative Aptitude Feb 27, 2017

315 views

0 votes

1 answer

1032

probability
ANSWER I AM GETTING : (0.5) / [1-(0.5n)] ANSWER GIVEN : (0.5) / [ 1-(0.5n-1) ]

Vicky rix asked in Quantitative Aptitude Feb 27, 2017

422 views

0 votes

0 answers

1033

Vicky rix asked in Quantitative Aptitude Feb 27, 2017

344 views

0 votes

0 answers

1034

Vicky rix asked in Quantitative Aptitude Feb 27, 2017

184 views

0 votes

0 answers

1035

Vicky rix asked in Quantitative Aptitude Feb 26, 2017

162 views

1 vote

2 answers

1036

probability
I am fine with (a)...which is 1/3....i am not able to understand b) and c) ....i feel answer as same for all 3 ...but answer given is different ....can anybody tell the difference between a) and b),c)

Vicky rix asked in Quantitative Aptitude Feb 26, 2017

315 views

1 vote

1 answer

1037

Probability
There are 15 tennis balls in a box, of which 9 have not previously been used. Three of the balls are randomly chosen, played with, and then returned to the box. Later, another 3 balls are randomly chosen from the box. Find the probability that none of these balls has ever been used.

Vicky rix asked in Quantitative Aptitude Feb 25, 2017

3.1k views

0 votes

1 answer

1038

Maths
There are 11 points on a plane with 5 lying on one straight line and another 5 lying on other straight line which is parallel to the first line. The remaining point is not collinear with any two of the previous points.The number of triangles that can be formed with vertices chosen from these 11 points is

. asked in Combinatory Feb 24, 2017

by .

318 views

1 vote

2 answers

1039

probability
In a bag,there are 4 fair coins and 3 unfair coins.The probability of getting a head in those unfair coins is 1/3 and tail is 2/3.Now if 2 coins are taken from the bag and flipped.What is the probability of getting both as heads ?

Vicky rix asked in Quantitative Aptitude Feb 23, 2017

570 views

1 vote

1 answer

1040

#probability_doubt_in_basic_concept
1) Two coins are tossed.What is the probability of getting one head and one tail ? WKT ANS IS 2/4=1/2 2) A coin is tossed twice.What is the probability of getting one head and one tail ? WKT ANS is 2/4=1/2 3) A bag has 3 red balls and 4 ... DIFFERENTLY BUT IN 3) BOTH {R,G} AND {G,R} ARE TREATED SAME......WHY ??? please explain I am getting confused here ....

Vicky rix asked in Quantitative Aptitude Feb 23, 2017

460 views

0 votes

0 answers

1041

Vicky rix asked in Probability Feb 22, 2017

280 views

1 vote

3 answers

1042

ISRO2016-EC Mathematics
The value of $\lim _{x \rightarrow 8}\left(\frac{x^{1 / 3}-2}{x-8}\right)$ is $1/4$ $1/8$ $1/12$ $1/16$

sh!va asked in Calculus Feb 22, 2017

by sh!va

433 views

0 votes

1 answer

1043

probability
If 4 married couples are arranged in a row, find the probability that no husband sits next to his wife.

Vicky rix asked in Quantitative Aptitude Feb 21, 2017

551 views

0 votes

1 answer

1044

probability
A closet contains 10 pairs of shoes. If 8 shoes are randomly selected, what is the probability that there will be exactly 1 complete pair? ANSWER I AM GETTING : [ C(10,1) * C(9,6) * 2^6 ] / [ C(20,8) ] ANSWER GIVEN : [ C(10,1) * C(9,6) * 2^6 ] / [C[20,8] *2!] PLEASE VERIFY IF AM MISSING SOMETHING

Vicky rix asked in Quantitative Aptitude Feb 21, 2017

488 views

0 votes

1 answer

1045

probability
A group of 6 men and 6 women is randomly divided into 2 groups of size 6 each. What is the probability that both groups will have the same number of men? ANSWER I AM GETTING IS : [C(6,3) * C(6,3)] / [12!/(6!*6!*2!)] ... . what i feel is that "the answer should be divided by 2! because the permutations among 2 groups shouldnot happen because both the groups are unlabelled"

Vicky rix asked in Quantitative Aptitude Feb 21, 2017

433 views

0 votes

1 answer

1046

probability
Given 20 people, what is the probability that, among the 12 months in the year, there are 4 months containing exactly 2 birthdays and 4 containing exactly 3 birthdays?

Vicky rix asked in Quantitative Aptitude Feb 21, 2017

1.2k views

1 vote

1 answer

1047

probability
How many people have to be in a room in order that the probability that at least two of them celebrate their birthday in the same month is at least $1/2$ ? Assume that all possible monthly outcomes are equally likely.

Vicky rix asked in Quantitative Aptitude Feb 21, 2017

1.5k views

1 vote

3 answers

1048

probability
Five people, designated as A, B, C, D, E, are arranged in linear order. Assuming that each possible order is equally likely, what is the probability that (a) there is exactly one person between A and B? (b) there are exactly two people between A and B?

Vicky rix asked in Quantitative Aptitude Feb 21, 2017

940 views

0 votes

1 answer

1049

#combinatorics #aptitude

Vicky rix asked in Combinatory Feb 14, 2017

635 views

0 votes

2 answers

1050

Vicky rix asked in Quantitative Aptitude Feb 14, 2017

870 views

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Recent questions tagged engineering-mathematics