Five girls, D, L, N, O and Q, are sitting in a row facing towards the south (not necessarily in the same order). L is second to the right of O. Q is to the immediate right of D. Two girls are between Q and N. How many girls are sitting to the right of D?
Q is to the immediate right of D.
Q(↓) D(↓)
Two girls are between Q and N.
Here N is possible in two places which are given below in Case(i) and Case(ii).
Case(i) Q(↓) D(↓) _ N(↓)
Case(ii) N(↓) _ _ Q(↓) D(↓)
L is second to the right of O.
In Case(ii), the above-given condition is not possible. So this case is eliminated.
Q(↓) D(↓) L(↓) N(↓) O(↓)
Only 1 girl is sitting to the right of D
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