search
Log In
Quick search syntax
tags tag:apple
author user:martin
title title:apple
content content:apple
exclude -tag:apple
force match +apple
views views:100
score score:10
answers answers:2
is accepted isaccepted:true
is closed isclosed:true
0 votes
107 views

Let x, y and z be distinct integers, that are odd and positive. Which one of the following statements cannot be true?

  1. $xyz^2$ is odd.
  2. $(x − y)^2 z$ is even.
  3. $(x + y − z)^2 (x + y)$ is even.
  4. $(x − y) (y + z) (x + y − z)$ is odd
in Quantitative Aptitude 11.5k points 208 1246 2279 107 views

1 Answer

0 votes

​​​​​​The difference of two odd integers is always an even number.

The multiplication of even integer with any(even/odd) integer is always an even integer.

Hence 4th option is not possible.

ago 18 points

Related questions

0 votes
0 answers
1
240 views
A, B, C are three numbers. [email protected] (A, B) = average of A and B, / (A, B) = product of A and B, and X (A, B) = the result of dividing A by B Average of A, B and C is given by (1)@(/(@(/(B, A), 2), C), 3) (2)X(@(/(@(B, A), 3), C), 2) (3)/(@(X(@(B, A), 2), C), 3) (4)/(X(@(/(@(B, A), 2), C), 3), 2)
asked May 1, 2016 in Quantitative Aptitude jothee 11.5k points 208 1246 2279 240 views
0 votes
0 answers
2
185 views
Answer the following question based on the information given below. For real numbers x, y, let f(x, y) = Positive square-root of (x + y), if (x + y)$^{0.5}$ is real = (x + y)$^2$, otherwise g(x, y) = (x + y)$^2$, if (x + y)$^{0.5}$ is real = - ... conditions is f(x, y) necessarily greater than g(x, y)? Both x and y are less than -1 Both x and y are positive Both x and y are negative y > x
asked May 1, 2016 in Quantitative Aptitude jothee 11.5k points 208 1246 2279 185 views
0 votes
0 answers
3
149 views
Answer the following question based on the information given below. For three distinct real numbers x, y and z, let f(x, y, z) = min(max(x, y), max(y, z), max(z, x)) g(x, y, z) = max(min(x, y), min(y, z), min(z, x)) h(x, y, z) = max(max(x, y), max(y, z), max(z, x)) j(x, y, z) = min(min(x, y), min( ... y, z) - j(x, y, z))/(f(x, y, z) - h(x, y, z)) (h(x, y, z) - f(x, y, z))/(n(x, y, z) - g(x, y, z))
asked May 1, 2016 in Quantitative Aptitude jothee 11.5k points 208 1246 2279 149 views
0 votes
1 answer
4
399 views
Answer the following question based on the information given below. For three distinct real numbers x, y and z, let f(x, y, z) = min(max(x, y), max(y, z), max(z, x)) g(x, y, z) = max(min(x, y), min(y, z), min(z, x)) h(x, y, z) = max(max(x, y), max(y, z), max(z, x)) j(x, y, z) = min(min(x, y), min( ... (x, y, z) - n(x, y, z)) (j(x, y, z) - g(x, y, z))/h(x, y, z) (f(x, y, z) - h(x, y, z))/f(x, y, z)
asked May 1, 2016 in Quantitative Aptitude jothee 11.5k points 208 1246 2279 399 views
0 votes
0 answers
5
264 views
Answer the following question based on the information given below. There are five machines A, B C, D and E situated on a straight line at distances of 10 metres, 20 metres, 30 metres, 40 metres and 50 metres respectively from the origin of the line. A robot is ... sent by the machines and that all the other data remains the same, what would be the answer to the above question? 120 140 340 70
asked May 1, 2016 in Quantitative Aptitude jothee 11.5k points 208 1246 2279 264 views
...