GAT Subject
Engineering
Computer Science Civil Engineering Chemical Engineering Agricultural Engineering Mechanical Engineering Electronics and Communication
24. | 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? | |
A. | 9 | |
B. | 12 | |
C. | 14 | |
D. | 18 | |