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40 % of 50 + 60

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40 % of 50 + 60 [#permalink] New post 01 Dec 2016, 08:27
Expert's post
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Question Stats:

92% (00:27) correct 8% (00:23) wrong based on 25 sessions
Quantity A
Quantity B
(40 % of 50 ) + 60
(60 % of 50) + 40




A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Re: 40 % of 50 + 60 [#permalink] New post 02 Dec 2016, 10:26
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Expert's post
Carcass wrote:
Quantity A
Quantity B
(40 % of 50) + 60
(60 % of 50) + 40



Students should avoid using the onscreen calculator for this one. Instead, we can find the percents in our head.

40 % of 50
10% of 50 = 5
So, 20% of 50 = 10
And 40% of 50 = 20


60 % of 50
10% of 50 = 5
50% of 50 = 25
So, 60% of 50 = 5 + 25 = 30


Given:
Quantity A: (40 % of 50) + 60
Quantity B: (60 % of 50) + 40

So, from our earlier calculations, we get:
Quantity A: (20) + 60
Quantity B: (30) + 40

Evaluate to get
Quantity A: 80
Quantity B: 70

Answer: A
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Re: 40 % of 50 + 60 [#permalink] New post 20 Dec 2017, 20:08
I scan the question too quick, I ignore the + sign
Re: 40 % of 50 + 60   [#permalink] 20 Dec 2017, 20:08
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