A particular seafood restaurant serves dinner Tuesday through Sunday. The restaurant is closed on Monday. Five entrees snapper, halibut, lobster, mahi mahi, and tuna are served each week according to the following restrictions:
Halibut is served on three days each week, but never on Friday.
Lobster is served on one day each week.
Mahi mahi is served on three days each week, but never on consecutive days.
Halibut and snapper are both served on Saturday and Sunday.
Tuna is served five days each week.
No more than three different entrees are served on any given day.

1. On which of the following pairs of days could the restaurant's menu of entrees be identical?
(A) Friday and Sunday
(B) Tuesday and Wednesday
(C) Saturday and Sunday
(D) Wednesday and Friday
(E) Thursday and Friday

2. Which of the following is a complete and accurate list of the days on which halibut and lobster may both be served?

(A) Tuesday, Thursday
(B) Tuesday, Wednesday, Thursday
(C) Monday, Tuesday, Wednesday
(D) Tuesday, Wednesday, Thursday, Friday
(E) Tuesday, Wednesday, Thursday, Saturday

3. If mahi mahi is served on Saturday, it could be true that
(A) snapper and mahi mahi are both served on Sunday
(B) snapper and halibut are both served on Tuesday
(C) lobster and halibut are both served on Thursday
(D) tuna and snapper are both served on Saturday
(E) lobster and snapper are both served on Friday

4. Which of the following statements provides sufficient information to determine on which three days halibut is served?

(A) Mahi mahi and lobster are served on the same day.
(B) Lobster and snapper are both served on Tuesday.
(C) Tuna is served on Saturday, and lobster is served on Tuesday.
(D) Mahi mahi is served on Saturday and snapper is served on all but one of the six days.
(E) Tuna is served on Sunday, and snapper is served on Tuesday and Thursday.

• Case 1
  Tue - Tuna(T), Mahi Mahi (MM)
  Wed - T
  Thus - T, MM
  Fri - x Halibut (H), T
  Sat - H, Snapper (S), MM
  Sun - H, S, T
  
  Case II
  Tue - T
  Wed - T, MM
  Thus - T
  Fri - x Halibut (H), T, MM
  Sat - H, Snapper (S), T
  Sun - H, S, MM
  
  Friday and Sunday cannot have the same entrees as one of them has halibut and the other one does not have....option A ruled out...
  Option B, C and E are ruled out as they are consecutive days and hence cannot have Mahi Mahi....
  
  Option D is correct
  
  2. Halibut is already being served on Saturday and Sunday. And since it is being served only three no of times... it;ll be served only once during Tue to Thu...
  In view of this i dont think any of the opitons is right...
  
  3. option E
  
  4. option E
• 10 years agoHelpfull: Yes(1) No(1)
• 1) D
  
  2) D
  
  3) E
  
  4) E
• 13 years agoHelpfull: Yes(0) No(6)
• Case 1
  Tue - Tuna(T), Mahi Mahi (MM)
  Wed - T
  Thus - T, MM
  Fri - x Halibut (H), T
  Sat - H, Snapper (S), MM
  Sun - H, S, T
  
  Case II
  Tue - T
  Wed - T, MM
  Thus - T
  Fri - x Halibut (H), T, MM
  Sat - H, Snapper (S), T
  Sun - H, S, MM
  
  1) D
  2) B because halibut has to be serverd 3 days should be on saturday and sunday not on friday ....there may be chance of serving halibut on tue,wed,thurs if we consider two cases and each day should not exceed 3 food items.. I think so...
  3) E
  
  4) E
• 10 years agoHelpfull: Yes(0) No(0)
• Refer the below website ,,it is very useful :)
  
  
  https://interviewbubble.com/a-particular-seafood-restaurant-serves-dinner-tuesday-through-sunday-the-restaurant-is-closed-on-monday-five-entrees-snapper-halibut-lobster-mahi-mahi-and-tuna-are-served-each-week-according-to/
• 4 years agoHelpfull: Yes(0) No(0)