For a cruise, a travel agency charges a weekly rate of $400 plus y dollars for each additional person booked on the same reservation. What is the charge for each additional person?
1: The weekly rate for 5 people sharing the cost of the cruise equally is $1600.
2: The weekly rate per person is 20 percent more expensive for 2 people sharing the cost equally than it is for 4 people sharing the cost equally.
OE:
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1: The weekly rate for 5 people sharing the cost of the cruise equally is $1600.
2: The weekly rate per person is 20 percent more expensive for 2 people sharing the cost equally than it is for 4 people sharing the cost equally.
OE:
[Reveal] Spoiler:
(1): 400 + 4y =1600 4y=1200 y=300
Sufficient
(2): (400 + y)/2 = 1.2(400 +3y)/4
Sufficient
Sufficient
(2): (400 + y)/2 = 1.2(400 +3y)/4
Sufficient