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SSC CGL 2027 · Quantitative Aptitude (Maths) · Chapter 20

Probability

Probability is a Tier 2 topic, and this chapter starts with the basic formula, sample spaces, complements and odds. Then come coins, dice with the 36-outcome grid, a pack of cards and balls drawn from a bag. Combined events cover the addition rule, independent events and "at least one" questions. A PYQ set and a chapter test come with it.

12 sections · ~430 min read · Free, no login needed
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Topics in this chapter

  1. 1

    Basics of Probability

    45 min read · Quiz included

  2. 2

    Coins and Dice

    45 min read · Quiz included

  3. 3

    Cards, Balls and Bags

    45 min read · Quiz included

  4. 4

    Combined Events

    45 min read · Quiz included

  5. 5

    Shortcuts & Speed Methods

    40 min read · Quiz included

  6. 6

    Solved Questions

    80 min read · Quiz included

  7. 7

    Practice Set 1

    20 min read · Quiz included

  8. 8

    Practice Set 2

    25 min read · Quiz included

  9. 9

    Practice Set 3

    30 min read · Quiz included

  10. 10

    PYQ Practice Set

    15 min read · Quiz included

  11. 11

    Chapter Test (25 Questions, 25 Minutes)

    25 min read · Quiz included

  12. 12

    Quick Revision

    15 min read · Quiz included