Seven pets A, B, C, D, E, F and G need to vaccinate on different days of the…
2023
Seven pets A, B, C, D, E, F and G need to vaccinate on different days of the week Monday to Sunday (not necessarily in that order). F is on Tuesday and B is on the previous day of F. There are three days gap between the days on which B and G are vaccinated. A is vaccinated just after D. The number of pets vaccinated between G and A equals the number between D and E. E is vaccinated before D but not immediately before. Who is vaccinated on Sunday?
- A.
A
- B.
B
- C.
E
- D.
G
Attempted by 132 students.
Show answer & explanation
Correct answer: A
Place B = Monday and F = Tuesday → G must be Friday (3 days between Mon and Fri). To satisfy A immediately after D and equality of gaps: the consistent arrangement is … Mon:B, Tue:F, Wed:C, Thu:E, Fri:G, Sat:D, Sun:A. This satisfies E before D (but not immediately) and equal counts between G–A and D–E, so Sunday = A.