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# An exclusive tourist charges tourists b dollars for the fir

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Senior Manager
Joined: 10 Apr 2012
Posts: 277

Kudos [?]: 1155 [0], given: 325

Location: United States
Concentration: Technology, Other
GPA: 2.44
WE: Project Management (Telecommunications)
An exclusive tourist charges tourists b dollars for the fir [#permalink]

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21 Mar 2013, 12:36
00:00

Difficulty:

25% (medium)

Question Stats:

80% (00:57) correct 20% (01:38) wrong based on 25 sessions

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An exclusive tourist resort charges tourists b dollars for the first night stay and charges a reduced rate of c dollars for every subsequent night of stay .How much does the tourist resort charge tourist for the first night stay?

1)Adam was charged 390 dollars for his 6 nights stay
2)The average( arithmetic mean) daily room rent for 3 nights' stay is 7/9 th times the rate for the first night stay .
[Reveal] Spoiler: OA

Kudos [?]: 1155 [0], given: 325

VP
Status: Far, far away!
Joined: 02 Sep 2012
Posts: 1120

Kudos [?]: 2330 [1], given: 219

Location: Italy
Concentration: Finance, Entrepreneurship
GPA: 3.8
Re: An exclusive tourist charges tourists b dollars for the fir [#permalink]

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21 Mar 2013, 12:59
1
KUDOS
guerrero25 wrote:
An exclusive tourist resort charges tourists b dollars for the first night stay and charges a reduced rate of c dollars for every subsequent night of stay .How much does the tourist resort charge tourist for the first night stay?

1)Adam was charged 390 dollars for his 6 nights stay
2)The average( arithmetic mean) daily room rent for 3 nights' stay is 7/9 th times the rate for the first night stay .

$$b=?$$

1)b+5n=390
not sufficient
n=1 b=385 and so on...

2)
$$\frac{(b+2n)}{3}=\frac{7}{9}b$$

$$6n=4b$$

$$b=\frac{3}{2}n$$

not sufficient

1+2)
$$b+5n=390$$
$$b=\frac{3}{2}n$$

$$b=90, n=60$$
sufficient, C
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Kudos [?]: 2330 [1], given: 219

Re: An exclusive tourist charges tourists b dollars for the fir   [#permalink] 21 Mar 2013, 12:59
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