A, B, C, D, and E are five siblings. A is older than B but younger than C. D is older than E. If E is the youngest, who is the second oldest? (2023)
Practice Questions
1 question
Q1
A, B, C, D, and E are five siblings. A is older than B but younger than C. D is older than E. If E is the youngest, who is the second oldest? (2023)
A
B
C
D
C is the oldest, A is older than B, and D is older than E. Therefore, D is the second oldest.
Questions & Step-by-step Solutions
1 item
Q
Q: A, B, C, D, and E are five siblings. A is older than B but younger than C. D is older than E. If E is the youngest, who is the second oldest? (2023)
Solution: C is the oldest, A is older than B, and D is older than E. Therefore, D is the second oldest.
Steps: 8
Step 1: Identify the relationships between the siblings based on the information given.
Step 2: A is older than B but younger than C, which means C > A > B.
Step 3: D is older than E, and since E is the youngest, we know E is the youngest sibling.
Step 4: Since E is the youngest, D must be older than E, making D older than at least one sibling.
Step 5: Now we have C > A > B and D > E. We need to determine the order of D in relation to A, B, and C.
Step 6: Since C is the oldest, we compare D with A and B. D must be older than E but we don't know if D is older or younger than A or B.
Step 7: However, since A is older than B, and D is older than E, the only possible order that fits is C > D > A > B > E.
Step 8: Therefore, D is the second oldest sibling.
