Get detailed explanations to advanced GMAT questions.

If two copying machines work simultaneously at their respective constant rates, how many copies do they produce in 5 minutes?

I. One of the machines produces copies at a constant rate of 250 copies per minute.

II. One of the machines produces copies at twice the constant rate of the other machine

Option A:

Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked.

Option B:

Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.

Option C:

BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.

Option D:

EACH statement ALONE is sufficient to answer the question asked.

Option E:

Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.

Option E is the correct answer.

Let’s say two machines A and B,

Statement I is insufficient: A = 250/minute no relation between A and B => Insufficient.

Statement II is insufficient: A=2B or B=2A => Insufficient.

Together I and II,

We don’t know A=250 or B=250 NS

- The figure above shows a construction plan for the intersection of three straight roads, each having…

- A car traveling at a certain constant speed takes 2 seconds longer to travel 1 kilometer than it would…

- If a, b, c are three numbers on the number line shown above, is c between a and b.

- The integers q,r,s,t and u are positive. If t >q , u > r, s >t, and r > s, what is the median of the five integers?

- If x ≠ – 1, then is equal to

- Copyright © 2020. All Rights Reserved. Crafted by Pixelmattic