in Quantitative Aptitude recategorized by
599 views
1 vote
1 vote

Is x + y – z + t even?

I. x + y + t is even.

II. tz is odd.

  1. if the questions can be answered with the help of both the statements but not with the help of either statement itself.
  2. if the question can not be answered even with the help of both the statements.
  3. if the question can be answered with the help 0 statement II alone
  4. if the question can be answered with the help of statement I alone
in Quantitative Aptitude recategorized by
7.9k points
599 views

1 Answer

0 votes
0 votes
To find if x + y – z + t is even or not, we need to know each of x, y, z, t is even or odd.

It is given that x + y + t is even .... from I

We now just need to check if z is even or odd.

If z is even, then (even - even) will be even. If z is odd, then (even - odd) will be odd.

From II, we can conclude that both t and z are odd as product of two odd numbers is odd.

even - odd = odd

So, we need both the statements to conclude if x + y - z + t is even.

A is the answer.
1.5k points

Related questions

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