Three numbers are drawn from {1, 2, 3, 4, 5, 6, 7} and placed in a row in the order drawn to form a three-digit number. What is the probability It is less than 426.

Answer rating: 100% (QA)

first we will see in how many way we can form a 3 digit number we can choose the first digit in 7 wa... View the full answer