Five books are arranged on a shelf. Book A is to the left of Book B but to the r
Practice Questions
Q1
Five books are arranged on a shelf. Book A is to the left of Book B but to the right of Book C. Book D is to the right of Book E but to the left of Book A. Which book is in the middle? (2023)
A
B
C
D
Questions & Step-by-Step Solutions
Five books are arranged on a shelf. Book A is to the left of Book B but to the right of Book C. Book D is to the right of Book E but to the left of Book A. Which book is in the middle? (2023)
Step 1: Identify the relationships given in the question.
Step 2: From 'Book A is to the left of Book B but to the right of Book C', we can arrange C, A, and B as C, A, B.
Step 3: From 'Book D is to the right of Book E but to the left of Book A', we know D is between E and A. So we can add E and D to our arrangement.
Step 4: Since D is to the left of A, we place E before D. The arrangement now looks like C, A, B, D, E.
Step 5: Count the books: C, A, B, D, E. The middle book is the third one in this arrangement.
Step 6: The third book in the arrangement C, A, B, D, E is Book D.
Relative Positioning – Understanding the relative positions of items based on given conditions.
Logical Reasoning – Using logical deductions to arrange items based on their relationships.
