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Two parking lots can hold a total of 115 cars. The Green lot can hold

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Two parking lots can hold a total of 115 cars. The Green lot can hold  [#permalink]

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New post 26 Jun 2018, 03:49
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

89% (00:44) correct 11% (01:34) wrong based on 23 sessions

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Two parking lots can hold a total of 115 cars. The Green lot can hold 35 fewer cars than the Red lot. How many cars can the Red lot hold?

(A) 35
(B) 40
(C) 70
(D) 75
(E) 80

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Re: Two parking lots can hold a total of 115 cars. The Green lot can hold  [#permalink]

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New post 26 Jun 2018, 05:31

Solution



Given:
    • Two parking lots can hold a total of 115 cars
    • The Green lot can hold 35 fewer cars than the Red lot

To find:
    • The number of cars the Red lot can hold

Approach and Working:
If we assume that the Red lot can hold n cars, then
    • The Green lot can hold = n – 35

As together they can hold 115 cars, we can say
    • n + n – 35 = 115
    Or, 2n = 150
    Or, n = 75

Hence, the correct answer is option D.

Answer: D
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Two parking lots can hold a total of 115 cars. The Green lot can hold  [#permalink]

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New post 26 Jun 2018, 08:09
Bunuel wrote:
Two parking lots can hold a total of 115 cars. The Green lot can hold 35 fewer cars than the Red lot. How many cars can the Red lot hold?

(A) 35
(B) 40
(C) 70
(D) 75
(E) 80


\(G = R - 35\)

So, We have \(R + ( R - 35 ) = 115\)

Or, \(2R = 150\)

So, R = 75, Answer must be (D)
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Re: Two parking lots can hold a total of 115 cars. The Green lot can hold  [#permalink]

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New post 26 Jun 2018, 13:22
R + G = 115
R - G = 35
----------
2R = 150
R = 75

Answer: D
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Re: Two parking lots can hold a total of 115 cars. The Green lot can hold &nbs [#permalink] 26 Jun 2018, 13:22
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