A box contains 5 red, 4 blue, and 6 green marbles. Calculate the probability of drawing 2 red marbles in succession without replacement.

Wed, 29 Apr 2026 22:27:46 +0000

**A box contains 5 red, 4 blue, and 6 green marbles. Calculate the probability of drawing 2 red marbles in succession without replacement.** In a quiet yet consistent digital curiosity, people across the United States are turning to simple yet fascinating probability puzzles—quests that blend math with everyday wonder. One such puzzle features a box filled with five red marbles, four blue, and six green—totaling fifteen marbles. The question isn’t about chance in games or gameshow odds, but about a precise calculation: what’s the chance of drawing two red marbles in a row without putting any back? This moment quietly reflects a broader interest in logic, patterns, and risk—key drivers behind growing engagement in interactive content on platforms like Discover. The allure lies not in risk, but in understanding chance: how small changes affect odds, and how math reveals order behind randomness. For those exploring probability, this classic problem offers clarity—no jargon, just practical reasoning. The calculation is straightforward. First draw: five red marbles out of fifteen total, probability = 5/15. Assuming red is removed, only ten marbles remain, with four red. The second draw now has a 4/10 chance. Multiply both: (5/15) × (4/10) = (1/3) × (2/5) = 2/15, or approximately 13.3%. This exact figure sits comfortably in the realm of audience-friendly probability—neither overwhelming nor trivial. This question is gaining subtle traction as part of a broader movement toward data literacy and casual science engagement. In mobile-first environments where users seek quick yet meaningful insights, such puzzles satisfy intellectual curiosity without effort. They align with growing trends in educational content that prioritize clarity over complexity. The focus remains purely educational—no commercial spin, no sensationalism.