9. E
   Room M cannot be in the 3rd order because he cannot enter M without having passed through the rooms I, K, L.

10. C
    A visitor can enter J after entering K.

11. A
    Visitors can enter and leave the exhibition only through G. So, the shut-off doorway has to be K, I, L, M because it can still allow passage to G.

12. E
    The visitor can enter any of the rooms any number of times. But he has to eventually enter room L twice to make his exit because from room M he has to go to L because, this is doorway between K and L. And from K he can go back to G and then make his exit.

13. B
    On reaching I, the visitor will have passed through L, K and J - 3 rooms since the stop for rest at M.

14. C
    The proposed doorway has to be between I and J. Because that would be accessible to G directly and thus enable them to refrain from entering any of the rooms in the exhibition twice.

     

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Index

Test 4
Section 1 : Verbal Section
Section 2 : Quantitative Section
Section 3 : Analytical Section
Section 4 : Quantitative Section
Section 5 : Verbal Section
Section 6 : Analytical Section
Section 7 : Analytical Section
Answer key to Test 4

PART I To The Students