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Re: If x is negative and y is positive, which of the following must be [#permalink]

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09 Nov 2015, 01:18

A. x/y -ve/+ve=-ve will be negative B. xy -ve*+ve= -ve will be negative C. 2y + x might be positive or negative . The sign will be depend on the absolute values of x and y . The expression will be positive if 2y>x D. (x + y)^2 + 1 = (x+y)^2 will be positive irrespective of the absolute values of x and y will be positive always E. 3x/y =- ve/ +ve will be negative

Answer D
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When everything seems to be going against you, remember that the airplane takes off against the wind, not with it. - Henry Ford The Moment You Think About Giving Up, Think Of The Reason Why You Held On So Long +1 Kudos if you find this post helpful

IMPORTANT TIP: To answer this question, we'll need to examine every answer choice. Given this, where would a crafty test-maker place the correct answer? He/she would place it near the bottom, because most people check the answer choices from top to bottom. So, whenever we have such a question, I suggest that we start from the bottom and work our way to the top.

If x is negative and y is positive, which of the following must be positive?

A. x/y B. xy C. 2y + x D. (x + y)^2 + 1 E. 3x/y

Sir i have a query. Can negative integers be even and odd, for example, -4 is even number?

Yes.

1. An even number is an integer that is "evenly divisible" by 2, i.e., divisible by 2 without a remainder. 2. An odd number is an integer that is not evenly divisible by 2. 3. According to the above both negative and positive integers can be even or odd.

If x is negative and y is positive, which of the following must be positive?

A. x/y B. xy C. 2y + x D. (x + y)^2 + 1 E. 3x/y

Sir i have a query. Can negative integers be even and odd, for example, -4 is even number?

Yes.

1. An even number is an integer that is "evenly divisible" by 2, i.e., divisible by 2 without a remainder. 2. An odd number is an integer that is not evenly divisible by 2. 3. According to the above both negative and positive integers can be even or odd.

Sir i have a query. Can negative integers be even and odd, for example, -4 is even number?

Yes.

1. An even number is an integer that is "evenly divisible" by 2, i.e., divisible by 2 without a remainder. 2. An odd number is an integer that is not evenly divisible by 2. 3. According to the above both negative and positive integers can be even or odd.

I'd like to add that 0 is also even. GMAT questions often test this concept.

Cheers, Brent

Yes.

ZERO:

1. 0 is an integer.

2. 0 is an even integer. An even number is an integer that is "evenly divisible" by 2, i.e., divisible by 2 without a remainder and as zero is evenly divisible by 2 then it must be even.

3. 0 is neither positive nor negative integer (the only one of this kind).

4. 0 is divisible by EVERY integer except 0 itself.
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