What Two-Part Analysis tests
Two-Part Analysis gives you a scenario and a table with two answer columns that share one list of options. You pick one option for each column, and the two picks often depend on each other: two values that satisfy a pair of conditions, a strengthener and a weakener for the same argument, or a rate and the time that matches it. GMAC writes these questions as quantitative, verbal, or a mix of both, and the quantitative ones often reduce to a pair of equations.
How the GMAT Focus scores it
You earn credit only when both columns are right; GMAC gives no partial credit. Each question counts once in the 20-question Data Insights section, which reports a score from 60 to 90 that GMAC weights equally with Quant and Verbal.
Timing rule of thumb
Allow 2.5 to 3 minutes. Spend the first 30 seconds deciding whether one constraint ties the two columns together; that decision sets your method. Then check that your pair satisfies every condition in the prompt before you select.
The two most common traps
1.Solving the columns separately
When the prompt links the answers, the option that fits column one on its own can make column two impossible. Hold both conditions at once.
2.Right values, wrong order
Each column has its own label. If you swap the two values, you score zero even though both numbers are right.