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This series is designed to help you step up your Data Sufficiency practice while we all spend a little extra time at home during the coronavirus situation; I’m going to publish one practice Data Sufficiency question each day! You can choose to do all of them, or none of them. 

Click on the tag “Social Distancing DS Challenge” at the bottom of this post to see all of the questions in this series! 

And remember to take whatever precautions you need to stay healthy over the next few weeks! 

Question #2

A thoroughly mixed beverage consists only of certain amounts of cream and coffee. What is the ratio of milliliters of cream to milliliters of coffee in the beverage?

    (1) Exactly 5 milliliters of cream is contained in 30 milliliters of the beverage.

    (2) Exactly 35 milliliters of coffee is contained in 42 milliliters of the beverage.

Explanation

Remember that you’re only trying to determine if the information is sufficient, so don’t waste time actually trying to find the ratio! You can find the ratio between ingredients once you know the amount of each in the beverage or if you know the amount of one in relation to the a set amount of the beverage (one part to one part in a two part ratio, or one part to whole in a two part ratio).

Using either statement, you can figure out the amount of coffee and the amount of cream for a given amount of beverage (you just need to subtract). The correct answer is D.