A question is given, followed by two statements labelled I and II. Identify which of the statements is/are sufficient to answer the question.
Question:
How many soldiers are there between William and David in a row of soldiers, all facing north?
Statements:
(I) William is 15th from the extreme left end of the row.
(II) David is exactly in the middle of the row and there are ten soldiers to his right.
1
II alone is sufficient, while I alone is not sufficient
2
I alone is sufficient, while II alone is not sufficient
3
Both I and II together are not sufficient
4
Both I and II together are sufficient