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Do at least 40 percent of the students enrolled at Sunshine Elementary

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Do at least 40 percent of the students enrolled at Sunshine Elementary  [#permalink]

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New post 21 Mar 2018, 05:12
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  25% (medium)

Question Stats:

78% (01:15) correct 22% (01:24) wrong based on 40 sessions

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Do at least 40 percent of the students enrolled at Sunshine Elementary School ride the bus to school?

(1) 10 percent of the students enrolled at Sunshine Elementary School walk to school.
(2) The number of students enrolled at Sunshine Elementary School who ride the bus to school is three times the number of students who do not ride the bus.

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Do at least 40 percent of the students enrolled at Sunshine Elementary  [#permalink]

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New post 21 Mar 2018, 06:14
Bunuel wrote:
Do at least 40 percent of the students enrolled at Sunshine Elementary School ride the bus to school?

(1) 10 percent of the students enrolled at Sunshine Elementary School walk to school.
(2) The number of students enrolled at Sunshine Elementary School who ride the bus to school is three times the number of students who do not ride the bus.


1 - not sufficient
2- 1:3 ratio of bus to not bus ( >40 ride bus)

considering that only bus / no bus are the options

(B) should be sufficient

(B) imo
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Do at least 40 percent of the students enrolled at Sunshine Elementary &nbs [#permalink] 21 Mar 2018, 06:14
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Do at least 40 percent of the students enrolled at Sunshine Elementary

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