In how many different ways can four books A, B, C and D be arranged one above another in a vertical order such that the books A and B are never in continuous position? December 31, 2021December 31, 2021 administrator A. 9B. 12C. 14D. 18Check AnswerB. 12 Share the PostRelated Posts:In how many different ways can six players be…There are two identical red, two identical black,…A machine P can print one lakh books in 8 hours,…In a question paper, there are four multiple choice…A two number committee comprising of one male and…A group of 10 representatives is to be selected out…