MATHEMATICS · Subjective · CBSE · Mathematics · Permutations and Combinations · Permutations and Combinations
Problem
A lottery uses a 3-digit number, with each digit from 0 to 9. You can pick one number; if it matches, you win 1000. Before picking, you get one free clue: the lottery reveals one digit, including its position and value. What strategy maximizes your chance to win?