MAT Part 3: DI-Sufficiency — The Shortcut Lane, Exam-Ready Notes

Data analysis and sufficiency rewards approximation and option elimination.

Set types

• Pie charts, bar-line combos, tables with missing cells, caselets, data sufficiency pairs.
• Calculation-heavy but number-friendly; percentages and ratios dominate.

Shortcuts that work

• Fraction-percentage conversion table to 1/24; graphical eyeballing before computing.
• Option spread scanning: wide spread allows approximation; tight spread demands exactness.
• Data sufficiency: statement testing order fixed — A, B, combined; avoid full solving.

Attempt math

• 25-30 attempts in 35 minutes; leave multi-table monsters for the last pass.

Revise in 30 seconds

• Fractions table to 1/24 is the core tool.
• Eyeball before computing.
• DS: test A, B, then combined.
• 25-30 attempts in 35 minutes.