Question: How many children are there between P and Q in a row of children ?
Statements:
P is fifteenth from the left in the row.
Q is exactly in the middle and there are ten children towards his right.
I alone is sufficient while II alone is not sufficient
II alone is sufficient while I alone is not sufficient
Either I or II is sufficient
Both I and II are sufficient
Explanation:
From II, Q being in the middle, there are 10 children to his right as well as to his left. So, Q is 11th from the left. From I, P is 15th from the left.Thus, from both I and II, we conclude that there are 3 children between P and Q.
From II, Q being in the middle, there are 10 children to his right as well as to his left. So, Q is 11th from the left. From I, P is 15th from the left.Thus, from both I and II, we conclude that there are 3 children between P and Q.