GMAT
Data Sufficiency
Sal works through the 155 data sufficiency questions in chapter 6 of the the 11th edition of the official GMAC GMAT Review (ISBN Number: 0-9765709-0-4 published in 2005)
  1. GMAT: Data Sufficiency 1
  2. GMAT: Data Sufficiency 2
  3. GMAT: Data Sufficiency 3
  4. GMAT: Data Sufficiency 4
  5. GMAT: Data Sufficiency 5
  6. GMAT: Data Sufficiency 6
  7. GMAT: Data Sufficiency 7
  8. GMAT: Data Sufficiency 8
  9. GMAT: Data Sufficiency 9
  10. GMAT: Data Sufficiency 10
  11. GMAT: Data Sufficiency 11
  12. GMAT: Data Sufficiency 12
  13. GMAT: Data Sufficiency 13
  14. GMAT: Data Sufficiency 14
  15. GMAT: Data Sufficiency 15
  16. GMAT: Data Sufficiency 16
  17. GMAT: Data Sufficiency 17
  18. GMAT: Data Sufficiency 18
  19. GMAT: Data Sufficiency 19
  20. GMAT: Data Sufficiency 20
  21. GMAT: Data Sufficiency 21
  1. GMAT Data Sufficiency 21 (correction)
  2. GMAT: Data Sufficiency 22
  3. GMAT: Data Sufficiency 23
  4. GMAT: Data Sufficiency 24
  5. GMAT: Data Sufficiency 25
  6. GMAT: Data Sufficiency 26
  7. GMAT: Data Sufficiency 27
  8. GMAT: Data Sufficiency 28
  9. GMAT: Data Sufficiency 29
  10. GMAT: Data Sufficiency 30
  11. GMAT: Data Sufficiency 31
  12. GMAT: Data Sufficiency 32
  13. GMAT: Data Sufficiency 33
  14. GMAT: Data Sufficiency 34
  15. GMAT: Data Sufficiency 35
  16. GMAT: Data Sufficiency 36
  17. GMAT: Data Sufficiency 37
  18. GMAT: Data Sufficiency 38
  19. GMAT: Data Sufficiency 39
  20. GMAT Data Sufficiency 40
  21. GMAT Data Sufficiency 41