Since a 3-digit number cannot start with digit 0, The hundredth place can have any of the 4 digits. Now, the tens and units place can have all the 5 digits. T Therefore, the total possible 3-digit numbers are 4 × 5 × 5, i.e., 100. The total possible 3 digit numbers having all digits same = 4 Hence, P (3-digit number with same digits) =4/100 = 1/25