প্রশ্ন ও সমাধান

All combination locks manufactured by the Gulzar Combination Lock Company have a combination that consists of four elements a one-digit number, a two-digit number, and two letters of the alphabet. Each combination conforms to the following rules.i. The one-digit number is the first element in the combination.ii. The two letters of the alphabet are not adjacent elements in the combination.iii. The two-digit number consists of two different numerals.iv. The two-digit number has no numerals in common with the one-digit number.The sequence of elements 9-K-M-29 violates which of the given rules?