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GMAT Question of the Day (September 29)

Jeff 0

Math

The price of a house decreased by x\% from 1998 to 1999 and increased by y\% from 1999 to 2000. If the house cost M dollars in 2000, how much did it cost in 1998?

A. 100 * \frac{\frac{M}{1 + x}}{1 - y}
B. \frac{\frac{M}{1 + \frac{x}{100}}}{1 - \frac{y}{100}}
C. \frac{M}{1 + \frac{x}{100} - \frac{y}{100}}
D. \frac{\frac{10,000M}{100 + y}}{100 - x}
E. \frac{\frac{10,000M}{100 + x}}{100 - y}

Question Discussion & Explanation
Correct Answer - D - (click and drag your mouse to see the answer)

Math Revolution

Verbal

Shipping Clerk: The five specially ordered shipments sent out last week were sent out on Thursday. Last week, all of the shipments that were sent out on Friday consisted entirely of building supplies, and the shipping department then closed for the weekend. Four shipments were sent to Truax Construction last week, only three of which consisted of building supplies.

If the shipping clerk’s statements are true, which of the following must also be true?

A. At least one of the shipments sent to Truax Construction last week was specially ordered.
B. At least one of last week’s specially ordered shipments did not consist of building supplies.
C. At least one of the shipments sent to Truax Construction was not sent out on Thursday of last week.
D. At least one of the shipments that were sent out on Friday of last week was sent to Truax Construction.
E. At least one of the shipments sent to Truax Construction last week was sent out before Friday.

Question Discussion & Explanation

Correct Answer - - (click and drag your mouse to see the answer)

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