day2_basic_probability_puzzles_4.py

#https://www.hackerrank.com/challenges/basic-probability-puzzles-4/problem


p1 = (5/9) * (7/10) * (3/9)
p2 = (5/9) * (3/10) * (7/9)
p3 = (4/9) * (7/10) * (6/9)

p1 + p2 + p3