IIM-K (BMSAT) 2025 (QA) PYQs

The probability that a randomly chosen positive divisor of $10 ^ {2023}$ is an integer multiple of $10 ^ {2001}$ is

There is a 4-in-5 chance that A can complete the marathon. There is a 5-in-8 chance that B can't complete the marathon, which is independent of A's performance. What is the probability that both A and B end up completing?

The minimum number of times a fair coin must be tossed so that the probability of getting at least one head exceeds 0.8 is