# GMAT Question of the Day – Data Sufficiency – Overlapping Sets

Of the leopards at a certain zoo, 20% are both spotted and mature. If all the leopards at the zoo are either spotted or not spotted, or mature or immature, is the ratio of the number of immature leopards who are spotted to the number of immature leopards who are not spotted greater than 1?

(1) If the number of immature spotted leopards doubled than there would be 102 total leopards at the zoo.

(2) If the number of immature but not spotted leopards were decreased by a half there would 86 total leopards at the zoo.

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## GMAT Question of the Day Solution

This overlapping sets question might leave you feeling a bit empty. Thinking – what was the point of that? Well, the point of that was to define the information that you were given and then to realize that you didn’t have enough to answer the questions. That’s what DS questions with an “E” answer are like. Sometimes there is no further meaning than just plain old insufficient.

## More GMAT overlapping sets practice questions!

Here’s an overlapping sets question that adds in a bit of probability. Don’t let the probability component get in your way! Often, probability questions are easy. Take it step by step.

Here’s a challenging sets question from the GMAT Prep Tests 1 and 2. Stay organized. Make the easy inferences and you should be fine.

Here’s one from GMAT Question of the Day that’s in the same vein. It also has percents/proportions and will give excellent practice using the two group overlapping sets matrix.

GMAT Question of the Day 2 group overlapping sets proportions and percents

This one is a bit different but will still give you 2 group practice and will give you exposure to overlapping sets on data sufficiency which often comes down to systems of questions/counting equations.

GMAT Question of the Day 2 group overlapping sets Data Sufficiency

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