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A fruit drink advertises that it has 5 percent apple juice...

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Director
Joined: 12 Feb 2015
Posts: 917
A fruit drink advertises that it has 5 percent apple juice...  [#permalink]

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16 Jan 2019, 09:13
3
00:00

Difficulty:

25% (medium)

Question Stats:

74% (01:54) correct 26% (01:48) wrong based on 77 sessions

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A fruit drink advertises that it has 5 percent apple juice. Children pour themselves $$\frac{3}{4}$$ cup of this fruit drink and then add another $$\frac{1}{4}$$ cup of fruit drink that has 50 percent apple juice. Which is most nearly the percent of apple juice in the children's mixed drink?

A) 12.5%
B) 16.3%
C) 17.5%
D) 55.0%
E) 65.0%

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Manish

"Only I can change my life. No one can do it for me"
Director
Joined: 09 Mar 2018
Posts: 995
Location: India
Re: A fruit drink advertises that it has 5 percent apple juice...  [#permalink]

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16 Jan 2019, 21:56
CAMANISHPARMAR wrote:
A fruit drink advertises that it has 5 percent apple juice. Children pour themselves $$\frac{3}{4}$$ cup of this fruit drink and then add another $$\frac{1}{4}$$ cup of fruit drink that has 50 percent apple juice. Which is most nearly the percent of apple juice in the children's mixed drink?

A) 12.5%
B) 16.3%
C) 17.5%
D) 55.0%
E) 65.0%

IMO it should be C.( solved using the weighted average approach)

Post the OA revelation, OP do post the approach.
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Senior Manager
Joined: 15 Feb 2018
Posts: 365
A fruit drink advertises that it has 5 percent apple juice...  [#permalink]

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16 Jan 2019, 23:55
1
I didn't pay attention when solving so I got it wrong. Stupid mistakes are costly.

5/100·3/4+50/100·1/4=
1/20·3/4+1/2·1/4=3/80+1/8=13/80 (over eighty!)
13·5/4=16.25

B
A fruit drink advertises that it has 5 percent apple juice...   [#permalink] 16 Jan 2019, 23:55
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A fruit drink advertises that it has 5 percent apple juice...

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