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To make a certain color, a paint dealer mixes 3.4 liters of red color 07 Apr 2021, 03:15
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C
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45% (medium)

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72% (02:18) correct 28% (02:47) wrong based on 358 sessions

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To make a certain color, a paint dealer mixes 3.4 liters of red color to a base that is 68 liters. The paint manufacturer recommends mixing 0.7 liters per 10 liters of base to make that color. By what percent should the mixing be increased to bring it to the recommendation?

(A) 10%
(B) 33.33%
(C) 40%
(D) 66.66%
(E) 72%
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C
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To make a certain color, a paint dealer mixes 3.4 liters of red color 12 Apr 2021, 05:50
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Recc. per 10 litre = .7

Recc. per 1 litre = .7/10

Recc for 68 litre = .07* 68 = 4.76 litres

Percentage change = Difference/ initial *100

= ((4.76-3.40)/3.40)*100

= (1.36/3.40) *100

= 40%

answer option C
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To make a certain color, a paint dealer mixes 3.4 liters of red color 07 Apr 2021, 03:35
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Manufacturer's variant 0.7 in 10 or 0.7*6.8 in 68 lts or 4.76 ltr in 68 lts

Dealers variant 3.4 in 68 ltr

difference need to be added i.e 4.76-3.4=1.36 above 3.4 i.e 1.36*100/3.4 %= 40% option C
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To make a certain color, a paint dealer mixes 3.4 liters of red color 04 Oct 2025, 10:20
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A calculation heavy question:
The paint manufacturer recommends:
=> 0.7 in 10
=> 0.7*6.8 in 68 lts
=> 4.76 ltr in 68 lts

paint dealer mixes: 3.4 in 68 ltr
=> 3.4

So, Difference will be percent should the mixing be increased
=> 4.76-3.4
=> 1.36 above base of 3.4
=> 1.36*100/3.4 %
=> 40%

Option C
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To make a certain color, a paint dealer mixes 3.4 liters of red color 04 Oct 2025, 20:15
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I think there's a way that can make this question less calculation heavey

notice that
\(\\
34 = \frac{68}{2}\)
so \(3.4 = \frac{1 }{ 20} * 68\)

Or, we can say that this mixture hsa 0.5l of red paint per 10l base.


And we want to target 0.7l of red paint per 10l base. Thus, the change would be \(0.7 - 0.5 = 0.2\)

The percentage change would be \(\frac{0.2 }{ 0.5} =\frac{ 2}{5} = 40%\)
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To make a certain color, a paint dealer mixes 3.4 liters of red color 30 Nov 2025, 14:45
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0.7/10= .07

3.4/68= .05

.05x=.07
x=1.4. This is a multiplier, so 40%
Bunuel
To make a certain color, a paint dealer mixes 3.4 liters of red color to a base that is 68 liters. The paint manufacturer recommends mixing 0.7 liters per 10 liters of base to make that color. By what percent should the mixing be increased to bring it to the recommendation?

(A) 10%
(B) 33.33%
(C) 40%
(D) 66.66%
(E) 72%
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