# GMAT：Integrated Reasoning (IR)解析

1. For each of the following sponsors, select YES if an attendee of the sponsor’s conference would spend less money by employing the ROB strategy – paying the lowest possible room rate in the host hotel and paying the nondiscounted registration fee – than by reserving a room in the block. Otherwise, select NO.

1A赞助商CC：ROB费用： 720+70*2=860

ROB不省钱，所以选NO。

1B赞助商FFNA：ROB费用：325+70*2=465

ROB省钱，所以选YES。

1C赞助商HMHPA：ROB费用：600+79*2=758

ROB省钱，所以选YES。

2. Assume that host hotels receive a reimbursement from the conference organizers for 25% of the block rate per night for each unoccupied room in the conference block. For each of the following hotels, select YES if, for at least one conference on the weekend listed, the hotel would lose room revenue if a room in the block is vacant because an attendee employed the ROB strategy. Otherwise, select NO.

2A酒店Asiawest Center：CDA会议：185/190=0.97

QRTA&RCD: 185/195=0.95

2B酒店Bard Inn: PNDA会议：125/125=1

2C酒店Hilton: CC会议：70/110=0.64

3. Let X denote the block rate of the host hotel for a particular conference, and let Y denote the lowest room rate available in the host hotel outside of the conference block. For a conference that requires a two-night hotel stay, which one of the following expressions represents the least amount of discount on the conference registration fee that, according to the article, would be sufficient to deter conference attendees from employing the ROB strategy in choosing accommodations?

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