This question tests your ability to work with changing constraints over time—something that can trip you up if you're not careful about which capacity limit applies to which dates. Let's break this down step by step so you can see exactly how to approach it.
Understanding the SetupFirst, you need to figure out what capacity the facility had during different time periods:
- Before March 2016: One room of \(3 \times 5 = 15\) square meters. Since the guideline requires 1 square meter per cat, the facility could house up to 15 cats while staying compliant.
- From March 2016 onward: Two rooms of the same size, so \(15 + 15 = 30\) square meters total. This means up to 30 cats could be housed while staying compliant.
Critical point: February 2016 is still "before March 2016," so it uses the 15-cat limit, not 30! This is the detail that catches most students.
Checking 2015 DatesNow let's look at each 2015 date on the graph and see if the cat count exceeded 15:
- March 16, 2015: ~5 cats ✓ (compliant)
- May 1, 2015: ~14 cats ✓ (compliant)
- June 13, 2015: ~13 cats ✓ (compliant)
- August 4, 2015: ~10 cats ✓ (compliant)
- October 31, 2015: ~18 cats ✗ (NON-compliant—exceeds 15)
- December 31, 2015: ~8 cats ✓ (compliant)
So in 2015, exactly
1 date was non-compliant.
Checking 2016 DatesFor 2016, you need to be careful about which capacity limit applies:
- February 17, 2016: ~18 cats, limit is 15 ✗ (NON-compliant)
- April 8, 2016: ~26 cats, limit is 30 ✓ (compliant)
- June 5, 2016: ~28 cats, limit is 30 ✓ (compliant)
- July 16, 2016: ~35 cats, limit is 30 ✗ (NON-compliant—exceeds even the expanded capacity!)
- October 2, 2016: ~23 cats, limit is 30 ✓ (compliant)
- November 12, 2016: ~25 cats, limit is 30 ✓ (compliant)
So in 2016, exactly
2 dates were non-compliant.
Final Answer:- Blank 1 (2015): 1
- Blank 2 (2016): 2
The key insight here is recognizing that the capacity changes mid-timeline and applying the correct limit to each date—especially catching that February 2016 falls under the old rules.
Want to master Data Insights questions systematically?You can check out the
step-by-step solution on Neuron by e-GMAT to master the systematic framework for graph interpretation questions with changing constraints. You can also explore other GMAT official questions with detailed solutions on Neuron for structured practice
here.