Question

In a row of twelve person facing north how many person sits between Z and O?
I. Only two person sits between Z and R. Only one person sits between W and R, who doesn’t sit with Z. D sits third to right of M, neither of them sits adjacent to R or W. At least two person sits between W and O, who neither sits adjacent to D nor Z, who sits at left end of the row. Only three person sits between D and H, who doesn’t sit adjacent to W.
II. R sits fourth from left end. Only two person sits between O and
D. Only one person sits between Z and R. Only two person sits between H and O, who sits immediate left of
M. D sits at end of the row.

Q: Answer-In a row of twelve person facing north how many person sits between Z and O? I. Only two person sits...

From I We have Only two person sits between Z and R. Z sits at left end. Only one person sits between W and R, who doesnt sit with Z, that means W sits second to right of R. D sits third to right of M, neither of them sits adjacent to R or W. Only three person sits between D and H, who doesnt sit adjacent to W, that means D sits at extreme right end. At least two person sits between W and O, who neither sits adjacent to D nor Z, that means we have two different case, in case 1 O sits left of W, in case 2 O sits right of W. Based on above given information we have case-1 Hence, statement I is not sufficient. From II We have R sits fourth from left end. Only one person sits between Z and R, that means we have two possible place for Z, in case 1 Z sits second to left of R, in case 2 Z sits second to right of R. Only two person sits between O and D. D sits at end of the row. Only two person sits between H and O, who sits immediate left of M, that means D sits at extreme right end and case 2 is not valid. Based on above given information we have Clearly, only six person sits between Z and O. Hence, statement II alone sufficient

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question:

A If the data in Statement I alone is sufficient to answer the question, while the data in Statement II alone is not sufficient to answer the question.

B If the data in Statement II alone is sufficient to answer the question, while the data in Statement I alone is not sufficient to answer the question.

C If the data either in Statement I alone or in Statement II alone is sufficient to answer the question.

D If the data in both the Statements I and II together are not sufficient to answer the question.

E If the data in both the Statements I and II together are necessary to answer the question.