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Lupita and Vin both swam in the indoor pool at the same gym today. Lup

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Lupita and Vin both swam in the indoor pool at the same gym today. Lup  [#permalink]

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New post 11 Oct 2019, 02:53
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A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

100% (00:58) correct 0% (00:00) wrong based on 16 sessions

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Lupita and Vin both swam in the indoor pool at the same gym today. Lupita swims at that gym every 12 days. Vin swims there every 15 days. If both continue with their regular swimming schedules at the gym, the next time both will swim there on the same day is in how many days?

(A) 12
(B) 15
(C) 30
(D) 45
(E) 60

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Re: Lupita and Vin both swam in the indoor pool at the same gym today. Lup  [#permalink]

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New post 11 Oct 2019, 03:14
Bunuel wrote:
Lupita and Vin both swam in the indoor pool at the same gym today. Lupita swims at that gym every 12 days. Vin swims there every 15 days. If both continue with their regular swimming schedules at the gym, the next time both will swim there on the same day is in how many days?

(A) 12
(B) 15
(C) 30
(D) 45
(E) 60


Next time both will swim there on the same day = LCM of 12 & 15 = 60 days

IMO Option E

Using Fundamental principle of counting,
Lupita --> 12, 24, 36, 48, 60, . . . .
Vin --> 15, 30, 45, 60, . . .
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Re: Lupita and Vin both swam in the indoor pool at the same gym today. Lup  [#permalink]

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New post 11 Oct 2019, 08:31
Bunuel wrote:
Lupita and Vin both swam in the indoor pool at the same gym today. Lupita swims at that gym every 12 days. Vin swims there every 15 days. If both continue with their regular swimming schedules at the gym, the next time both will swim there on the same day is in how many days?

(A) 12
(B) 15
(C) 30
(D) 45
(E) 60


answer to question will be the LCM of 12 & 15 = 60 given options
IMO E
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Re: Lupita and Vin both swam in the indoor pool at the same gym today. Lup   [#permalink] 11 Oct 2019, 08:31
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Lupita and Vin both swam in the indoor pool at the same gym today. Lup

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