JEE Main 2025 Mathematics question

MathematicsProbabilityJEE Main 2025

A and B alternately throw a pair of dice. A wins if he throws a sum of 5 before B throws a sum of 8, and B wins if he throws a sum of 8 before A throws a sum of 5. The probability, that A wins if A makes the first throw, is

Answer: (2)

Solution

, . Sum of infinite GP gives probability .

Question ID VK-001978