If w, x, y, and z are numbers on the number line shown, which of the

Question

https://gmatclub.com/forum/download/file.php?id=50854 If w, x, y, and z are numbers on the number line shown, which of the following products is least? A. wy B. wz C. xy D. xz E. yz GMAT_PS_PREP_T2_6.png

Mohammadmo · Answer

As |w| is the greatest amount, so wz which has negative sign is the least amount.
So, option B

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BrentGMATPrepNow · Answer

Let's examine each answer choice....
A. wy
Since w and y are each negative, the product wy = (negative)(negative) = positive

B. wz
Since w is negative and z is positive, the product wz = (negative)(positive) = negative
Since we get a negative product, answer choice B is definitely less than answer choice A
ELIMINATE A

C. xy
Since w and y are each negative, the product xy = (negative)(negative) = positive
Since we already know that answer choice B is negative, we can ELIMINATE C

NOTE: At this point we can see that D and E will also yield negative values. 
D. xz
E. yz

Since B, D and E all include the variable z, the least possible product well be the one in which the other variable is the least.

This means the correct answer must be B.

Cheers,
Brent

randomavoidplease · Answer

Simple logic to apply. 
Product of any two negative numbers will turn positive, so any options on the left of the line are eliminated.

From remaining options wz will turn the least, or the product will be left most on the line.

ManifestDreamMBA · Answer

w<x<y, when multiplied by a positive number z, wz<xz<yz, eliminates D,E. wx, wy and xy will be all positive and hence > wz, so wz is the least number

sujoykrdatta · Answer

The largest negative is the least. 
So we need to use w and z since their product will be the largest negative

Ans B

krunal02 · Answer

A. wy = (least -ve)*(-ve) = +ve 
B. wz = (least -ve)*(+ve) = -ve
 So, A = eliminate 
C. xy = +ve
D. xz = -ve but wz is more left number than xz.
E. yz = same as xz

Correct option is B.

Rishab2409 · Answer

We want the least product so assigning values to the values for ease:

w = -1.8
x = -.09
y = -.01
z = .01

The least product should be negative so the answer has to contain the alphabet 'z', now the least product would be the smallest negative integer, and from the number line (or the values) the smallest negative number is w (-1.8). So, the answer would be 'wz' (B).

If w, x, y, and z are numbers on the number line shown, which of the

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GMAT Problem Solving (PS) Questions

If w, x, y, and z are numbers on the number line shown, which of the

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