# GMAT Question of the Day (May 19): Arithmetic and Critical Reasoning

- May 19, 02:00 AM Comments [0]

Math (DS)

$a$ , $b$ , and $c$ are integers. Is $abc = 0$ ?

1. $a^2 = 2a$
2. $\frac{b}{c} = \frac{(a+b)^2}{a^2+2ab+b^2} - 1$ ( $a \ne -b$ and $c \ne 0$ )

OA and Explanation

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Verbal (CR)

A light bulb company produces 2,000 light bulbs per week. The manager wants to ensure that standards of quality remain constant from week to week. The manager, therefore, suggests that the company reject 500 of the 2,000 light bulbs it produces each week.

Of the following, the best criticism of the manager’s plan is that the plan assumes that

(A) light bulb manufacturers cannot market every light bulb that they produce
(B) the overall quality of the light bulbs would not be improved if the total number of light bulbs produced were reduced
(C) each light bulb that is reviewed is worthy of being reviewed
(D) it is difficult to judge the quality of a light bulb
(E) the 1,500 light bulbs that are accepted will be of the same quality from week to week

OA and Explanation

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