GMAT Quantitative Reasoning Practice Test 3

Question : 71 of 100

Marks: +1, -0

Irin, Ingrid and Nell bake chocolate chip cookies in the ratio of 9.18:5.17:2.05. If altogether they baked a batch of 148 cookies, what percent of the cookies did Nell bake?

$0.125 \%$
$1.25 \%$
$12.5 \%$
$125 \%$
$0.152 \%$

Validate

Solution:

Add the numbers in the ratio to get

9.18+5.17+2.05=16.4

.
You don't need to relate to the number of cookies, it doesn't contribute anything.
The relative part of Nell is 2.05/16.4

=0.125=12.5 \%

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