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Ann and Bob planted trees on Friday. What is the ratio of

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Joined: 06 Jun 2012
Posts: 31
Followers: 1

Kudos [?]: 5 [0], given: 62

Ann and Bob planted trees on Friday. What is the ratio of [#permalink] New post 06 Jul 2012, 12:08
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Difficulty:

  35% (medium)

Question Stats:

66% (01:33) correct 34% (00:36) wrong based on 47 sessions
Ann and Bob planted trees on Friday. What is the ratio of the number of trees that Bob planted to the number of trees that Ann planted?

(1) Ann planted 20 trees more than Bob planted.
(2) Ann planted 10 percent more trees than Bob planted.
[Reveal] Spoiler: OA
Current Student
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Joined: 19 Mar 2012
Posts: 174
Location: United States
Concentration: Finance, General Management
GMAT 1: 750 Q50 V42
GPA: 3.69
WE: Analyst (Mutual Funds and Brokerage)
Followers: 5

Kudos [?]: 26 [0], given: 13

Re: Ann and Bob planted trees on Friday [#permalink] New post 06 Jul 2012, 13:00
Alterego wrote:
Ann and Bob planted trees on Friday. What is the ratio of the number of trees that Bob planted to the number of trees that Ann planted?

1) Ann planted 20 trees more than Bob planted.
2) Ann planted 10 percent more trees than Bob planted.


What we want to know:
Bob/Ann = ?

(1) Ann = 20 + B, plugging it into our equation we have B/(B+20) . . . we can't determine the answer from this fraction

(2) Ann = (1 + 0.10) * Bob, rearranging this . . . Bob/Ann = 1/(1+0.10) = (1/1.1) . . . Sufficient
Re: Ann and Bob planted trees on Friday   [#permalink] 06 Jul 2012, 13:00
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Ann and Bob planted trees on Friday. What is the ratio of

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