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In the town of Windsor, 250 families have at-least one car while 60

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In the town of Windsor, 250 families have at-least one car while 60 [#permalink]

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New post 23 Apr 2017, 07:21
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A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

86% (00:45) correct 14% (01:45) wrong based on 38 sessions

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In the town of Windsor, 250 families have at-least one car while 60 families have at-least two cars.How many families have exactly one car?

A)20
B)190
C)280
D)310
E)420
[Reveal] Spoiler: OA

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In the town of Windsor, 250 families have at-least one car while 60 [#permalink]

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New post 26 Apr 2017, 08:37
250 families have at least one car.

OF those 250, 60 have at least two cars, which means they certainly don't have exactly one car.

250 - 60 = 190 who have exactly one car. Answer B

The wording of this problem gave me trouble; the phrase "at least" and the word "exactly" tempted me to think that I was missing something in the simple subtraction above. I'm still not sure. I hope my approach and assumptions were correct. :-(
In the town of Windsor, 250 families have at-least one car while 60   [#permalink] 26 Apr 2017, 08:37
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In the town of Windsor, 250 families have at-least one car while 60

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