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45 litres of mixture is created by mixing Liquid A and Liqui

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SVP
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Status: The Best Or Nothing
Joined: 27 Dec 2012
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Concentration: General Management, Technology
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45 litres of mixture is created by mixing Liquid A and Liqui  [#permalink]

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New post 19 Aug 2014, 20:50
1
7
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

81% (02:06) correct 19% (02:45) wrong based on 229 sessions

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45 litres of mixture is created by mixing Liquid A and Liquid B in the ratio 3:2. How much more Liquid B must be added to make the ratio 9:11?

A: 9 Litres

B: 10 Litres

C: 12 Litres

D: 15 Litres

E: 16 Litres

Source: CMAT Preparation

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Re: 45 litres of mixture is created by mixing Liquid A and Liqui  [#permalink]

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New post 19 Aug 2014, 22:37
In current ratio A = (3/5) * 45 = 27
B is 18

Suppose "b" amount of b is added
new ratio = 27/(b+18) = 9/11
=> b+18 = 33
=> b = 15

So, answer will be D

Hope it helps!
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45 litres of mixture is created by mixing Liquid A and Liqui  [#permalink]

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New post 08 Feb 2015, 23:13
1
9/11 means that number of litres should be multiple of 9+11=20 but more than 45

it is 60, so 60-45=15

D
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Re: 45 litres of mixture is created by mixing Liquid A and Liqui  [#permalink]

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New post 05 Aug 2017, 14:02
Created a table (bold #'s are given):
...........A + B = Tot.
Ratio.....3 + 2 = 5
Multiple..x9
Actual..27 + 18 = 45

Plug in answers to get a multiple of 11 of Liquid B. Ex. 18+15=33. The only answer that worked D.
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Re: 45 litres of mixture is created by mixing Liquid A and Liqui  [#permalink]

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New post 05 Aug 2017, 15:02
[quote="PareshGmat"]45 litres of mixture is created by mixing Liquid A and Liquid B in the ratio 3:2. How much more Liquid B must be added to make the ratio 9:11?

A: 9 Litres

B: 10 Litres

C: 12 Litres

D: 15 Litres

E: 16 Litres

let b=liters of B to be added
2/5*45+b=11/20*(45+b)
b=15 liters
D
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Re: 45 litres of mixture is created by mixing Liquid A and Liqui   [#permalink] 05 Aug 2017, 15:02
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45 litres of mixture is created by mixing Liquid A and Liqui

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